{"id":868,"date":"2015-02-23T21:59:20","date_gmt":"2015-02-23T21:59:20","guid":{"rendered":"https:\/\/courses.candelalearning.com\/publicspeaking1xmaster\/?post_type=chapter&#038;p=868"},"modified":"2016-08-16T19:53:58","modified_gmt":"2016-08-16T19:53:58","slug":"chapter-6-logic-and-the-role-of-arguments","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/clinton-publicspeakingprinciples\/chapter\/chapter-6-logic-and-the-role-of-arguments\/","title":{"raw":"Logic and the Role of Arguments","rendered":"Logic and the Role of Arguments"},"content":{"raw":"Critical thinkers tend to exhibit certain traits that are common to them. These traits are summarized in Table 6.1:[footnote]Adapted from Facione, P. A. (1990). <em>Critical Thinking: A Statement of Expert Consensus for Purposes of Educational Assessment and Instruction, The Delphi Report (Executive Summary)<\/em>. Millbrae, CA: California Academic Press.[\/footnote]\r\n<table>\r\n<thead>\r\n<tr>\r\n<th style=\"text-align: center;\" colspan=\"2\">Table 6.1 Traits of Critical Thinkers<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td><strong>Open-mindedness<\/strong><\/td>\r\n<td>Critical thinkers are open and receptive to all ideas and arguments, even those with which they may disagree. Critical thinkers reserve judgment on a message until they have examined the claims, logic, reasoning, and evidence used. Critical thinkers are fair-minded and understand that a message is not inherently wrong or flawed if it differs from their own thoughts. Critical thinkers remain open to the possibility of changing their view on an issue when logic and evidence supports doing so.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong>Analytic Nature<\/strong><\/td>\r\n<td>Critical thinkers are interested in understanding what is happening in a message. Critical thinkers ask questions of the message, breaking it into its individual components and examining each in turn. Critical thinkers dissect these components looking for sound logic and reasoning.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong>Systematic by Method<\/strong><\/td>\r\n<td>Critical thinkers avoid jumping to conclusions. Critical thinkers take the time to systematically examine a message. Critical thinkers apply accepted criteria or conditions to their analyses.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong>Inquisitive<\/strong><\/td>\r\n<td>Critical thinkers are curious by nature. Critical thinkers ask questions of what is going on around them and in a message. Critical thinkers want to know more and take action to learn more.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong>Judicious<\/strong><\/td>\r\n<td>Critical thinkers are prudent in acting and making judgments. Critical thinkers are sensible in their actions. That is, they don't just jump on the bandwagon of common thought because it looks good or everyone else is doing it.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong>Truth-Seeking Ethos<\/strong><\/td>\r\n<td>Critical thinkers exercise an ethical foundation based in searching for the truth. Critical thinkers understand that even the wisest people may be wrong at times.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong>Confident in Reasoning<\/strong><\/td>\r\n<td>Critical thinkers have faith in the power of logic and sound reasoning. Critical thinkers understand that it is in everyone's best interest to encourage and develop sound logic. More importantly, critical thinkers value the power of letting others draw their own conclusions.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<div class=\"wp-nocaption aligncenter wp-image-895\">Recall that critical thinking is an active mode of thinking. Instead of just receiving messages and accepting them as is, we consider what they are saying. We ask if messages are well-supported. We determine if their logic is sound or slightly flawed. In other words, we act on the messages before we take action based on them. When we enact critical thinking on a message, we engage a variety of skills including: listening, analysis, evaluation, inference and interpretation or explanation, and self-regulation[footnote]Adapted from Facione, P. A. (1990).[\/footnote]<\/div>\r\n\r\n[caption id=\"attachment_898\" align=\"alignright\" width=\"300\"]<a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113644\/Martha_Stewart_nrkbeta.jpg\"><img class=\"wp-image-898 size-medium\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113644\/Martha_Stewart_nrkbeta-300x199.jpg\" alt=\"Martha Stewart\" width=\"300\" height=\"199\" \/><\/a> \"<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Martha_Stewart_nrkbeta.jpg\">Martha Stewart<\/a>\" by\u00a0nrkbeta.\u00a0<a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/2.0\/deed.en\">CC-BY-SA<\/a>.[\/caption]\r\n\r\nNext, we will examine each of these skills and their role in critical thinking in greater detail. As you read through the explanation of and examples for each skill, think about how it works in conjunction with the others. It\u2019s important to note that while our discussion of the skills is presented in a linear manner, in practice our use of each skill is not so straightforward. We may exercise different skills simultaneously or jump forward and backward.\r\n\r\n&nbsp;\r\n<blockquote>Without an open-minded mind, you can never be a great success. - Martha Stewart<\/blockquote>\r\n<h2>Listening<\/h2>\r\nIn order to understand listening, we must first understand the difference between <strong><em>listening<\/em><\/strong> and <em><strong>hearing<\/strong><\/em>. At its most basic, hearing refers to the <em>physiological<\/em> process of receiving sounds, while listening refers to the\u00a0<em>psychological<\/em> process of interpreting or making sense of those sounds.\r\n\r\nEvery minute of every day we are surrounded by hundreds of different noises and sounds. If we were to try to make sense of each different sound we would probably spend our day just doing this. While we may hear all of the noises, we filter out many of them. They pass through our lives without further notice. Certain noises, however, jump to the forefront of our consciousness. As we listen to them, we make sense of these sounds. We do this every day without necessarily thinking about the process. Like many other bodily functions, it happens without our willing it to happen.\r\n\r\nCritical thinking requires that we consciously listen to messages. We must focus on what is being said \u2013 and not said. We must strive not to be distracted by other outside noises or the internal noise of our own preconceived ideas. For the moment we only need to take in the message.\r\n\r\nListening becomes especially difficult when the message contains highly charged information. Think about what happens when you try to discuss a controversial issue such as abortion. As the other person speaks, you may have every good intention of listening to the entire argument.\r\n\r\nHowever, when the person says something you feel strongly about you start formulating a counter-argument in your head. The end result is that both sides end up talking past each other without ever really listening to what the other says.\r\n<h2>Analysis<\/h2>\r\nOnce we have listened to a message, we can begin to analyze it. In practice we often begin analyzing messages while still listening to them. When we analyze something, we consider it in greater detail, separating out the main components of the message. In a sense, we are acting like a surgeon on the message, carving out all of the different elements and laying them out for further consideration and possible action.\r\n\r\nLet\u2019s return to Shonda\u2019s persuasive speech to see analysis in action. As part of the needs section of her speech, Shonda makes the following remarks:\r\n<p style=\"padding-left: 30px;\"><em>Americans today are some of the unhealthiest people on Earth. It seems like not a week goes by without some news story relating how we are the fattest country in the world. In addition to being overweight, we suffer from a number of other health problems. When I was conducting research for my speech, I read somewhere that heart attacks are the number one killer of men and the number two killer of women. Think about that. My uncle had a heart attack and had to be rushed to the hospital. They hooked him up to a bunch of different machines to keep him alive. We all thought he was going to die. He\u2019s ok now, but he has to take a bunch of pills every day and eat a special diet. Plus he had to pay thousands of dollars in medical bills. Wouldn\u2019t you like to know how to prevent this from happening to you?<\/em><\/p>\r\nIf we were to analyze this part of Shonda\u2019s speech (see Table 6.2), we could begin by looking at the claims she makes. We could then look at the evidence she presents in support of these claims. Having parsed out the various elements, we are then ready to evaluate them and by extension the message as a whole.\r\n<h2>Evaluation<\/h2>\r\nWhen we evaluate something we continue the process of analysis by assessing the various claims and arguments for validity. One way we evaluate a message is to ask questions about what is being said and who is saying it. The following is a list of typical questions we may ask, along with an evaluation of the ideas in Shonda\u2019s speech.\r\n<h3><strong>Is the speaker credible?<\/strong><\/h3>\r\nYes. While Shonda may not be an expert per se on the issue of health benefits related to wine, she has made herself a mini-expert through conducting research.\r\n<h3><strong>Does the statement ring true or false based on common sense?<\/strong><\/h3>\r\nIt sounds kind of fishy. Four or more glasses of wine in one sitting doesn\u2019t seem right. In fact, it seems like it might be bordering on binge drinking.\r\n<h3><strong>Does the logic employed hold up to scrutiny?<\/strong><\/h3>\r\nBased on the little bit of Shonda\u2019s speech we see here, her logic does seem to be sound. As we will see later on, she actually commits a few fallacies.\r\n<h3><strong>What questions or objections are raised by the message?<\/strong><\/h3>\r\nIn addition to the possibility of Shonda\u2019s proposal being binge drinking, it also raises the possibility of creating alcoholism or causing other long term health problems.\r\n<h3><strong>How will further information affect the message?<\/strong><\/h3>\r\nMore information will probably contradict her claims. In fact, most medical research in this area contradicts the claim that drinking 4 or more glasses of wine a day is a good thing.\r\n<h3><strong>Will further information strengthen or weaken the claims?<\/strong><\/h3>\r\nMost likely Shonda\u2019s claims will be weakened.\r\n<h3><strong>What questions or objections are raised by the claims?<\/strong><\/h3>\r\nIn addition to the objections we\u2019ve already discussed, there is also the problem of the credibility of Shonda\u2019s expert \u201cdoctor.\u201d\r\n<div class=\"wp-nocaption aligncenter wp-image-896\">\r\n<table>\r\n<thead>\r\n<tr>\r\n<th style=\"text-align: center;\" colspan=\"2\">Table 6.2 Analysis of Shonda's Speech<\/th>\r\n<\/tr>\r\n<tr>\r\n<th style=\"text-align: center;\">Claims<\/th>\r\n<th style=\"text-align: center;\">Evidence<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td>\r\n<ul>\r\n \t<li>Americans are unhealthy<\/li>\r\n \t<li>American is the fattest country<\/li>\r\n \t<li>Americans suffer from many health problems<\/li>\r\n \t<li>Heart attacks are the number one killer of men<\/li>\r\n \t<li>Heart attacks are the number-two killer of women<\/li>\r\n<\/ul>\r\n<\/td>\r\n<td>\r\n<ul>\r\n \t<li>Some news stories about America as the fattest country<\/li>\r\n \t<li>Research about heart attacks<\/li>\r\n \t<li>Story of her uncle's heart attack<\/li>\r\n<\/ul>\r\n<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<blockquote>A wise man proportions his belief to the evidence. - David Hume<\/blockquote>\r\n<\/div>\r\n<h2><strong>Inference and Interpretation or Explanation<\/strong><\/h2>\r\n<h3><strong>\u201cImply\u201d or \u201cInfer\u201d?<\/strong><\/h3>\r\nFor two relatively small words, imply and infer seem to generate an inordinately large amount of confusion. Understanding the difference between the two and knowing when to use the right one is not only a useful skill, but it also makes you sound a lot smarter!\r\n\r\nLet\u2019s begin with imply. Imply means to suggest or convey an idea. A speaker or a piece of writing implies things. For example, in Shonda\u2019s speech, she implies it is better to drink more red wine. In other words, she never directly says that we need to drink more red wine, but she clearly hints at it when she suggests that drinking four or more glasses a day will provide us with health benefits.\r\n\r\nNow let\u2019s consider infer. Infer means that something in a speaker\u2019s words or a piece of writing helps us to draw a conclusion outside of his\/her words. We infer a conclusion. Returning to Shonda\u2019s speech, we can infer she would want us to drink more red wine rather than less. She never comes right out and says this. However, by considering her overall message, we can draw this conclusion.\r\n\r\nAnother way to think of the difference between imply and infer is: A speaker (or writer for that matter) implies.\u00a0The audience infers.\r\n\r\nTherefore, it would be incorrect to say that Shonda infers we should drink more rather than less wine. She implies this. To help you differentiate between the two, remember that an inference is something that comes from outside the spoken or written text.\r\n\r\nThe next step in critically examining a message is to interpret or explain the conclusions that we draw from it. At this phase we consider the evidence and the claims together. In effect we are reassembling the components that we parsed out during analysis. We are continuing our evaluation by looking at the evidence, alternatives, and possible conclusions.\r\n\r\nBefore we draw any inferences or attempt any explanations, we should look at the evidence provided. When we consider evidence we must first determine what, if any, kind of support is provided. Of the evidence we then ask:\r\n<ol>\r\n \t<li>Is the evidence sound?<\/li>\r\n \t<li>Does the evidence say what thespeaker says it does?<\/li>\r\n \t<li>Does contradictory evidenceexist?<\/li>\r\n \t<li>Is the evidence from a validcredible source?<\/li>\r\n<\/ol>\r\n[caption id=\"attachment_899\" align=\"alignright\" width=\"138\"]<a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113646\/Seat_belt_BX.jpg\"><img class=\"wp-image-899\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113646\/Seat_belt_BX-225x300.jpg\" alt=\"Seatbelt\" width=\"138\" height=\"184\" \/><\/a> <a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Seat_belt_BX.jpg\" target=\"_blank\">Seatbelt<\/a> by M.Minderhoud, <a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/3.0\/deed.en\" target=\"_blank\">CC-BY-SA<\/a>.[\/caption]\r\n\r\nEven though these are set up as yes or no questions, you\u2019ll probably find in practice that your answers are a bit more complex. For example, let\u2019s say you\u2019re writing a speech on why we should wear our seatbelts at all times while driving. You\u2019ve researched the topic and found solid, credible information setting forth the numerous reasons why wearing a seatbelt can help save your life and decrease the number of injuries experienced during a motor vehicle accident. Certainly, there exists contradictory evidence arguing seat belts can cause more injuries. For example, if you\u2019re in an accident where your car is partially submerged in water, wearing a seatbelt may impede your ability to quickly exit the vehicle. Does the fact that this evidence exists negate your claims? Probably not, but you need to be thorough in evaluating and considering how you use your evidence.\r\n<blockquote>A man who does not think for himself does not think at all. - Oscar Wilde<\/blockquote>\r\n<h2><strong>Self-Regulation<\/strong><\/h2>\r\nThe final step in critically examining a message is actually a skill we should exercise throughout the entire process. With self-regulation, we consider our pre-existing thoughts on the subject and any biases we may have. We examine how what we think on an issue may have influenced the way we understand (or think we understand) the message and any conclusions we have drawn. Just as contradictory evidence doesn\u2019t automatically negate our claims or invalidate our arguments, our biases don\u2019t necessarily make our conclusions wrong. The goal of practicing self-regulation is not to disavow or deny our opinions. The goal is to create distance between our opinions and the messages we evaluate.\r\n<div class=\"wp-nocaption aligncenter size-medium wp-image-900\">\r\n<h2><strong>The Value of Critical Thinking<\/strong><\/h2>\r\nIn public speaking, the value of being a critical thinker cannot be overstressed. Critical thinking helps us to determine the truth or validity of arguments. However, it also helps us to formulate strong arguments for our speeches. Exercising critical thinking at all steps of the speech writing and delivering process can help us avoid situations like Shonda found herself in. Critical thinking is not a magical panacea that will make us super speakers. However, it is another tool that we can add to our speech toolbox.\r\n<blockquote>When the mind is thinking, it is talking to itself. - Plato<\/blockquote>\r\nAs we will learn in the following pages, we construct arguments based on logic. Understanding the ways logic can be used and possibly misused is a vital skill. To help stress the importance of it, the Foundation for Critical Thinking has set forth universal standards of reasoning. These standards can be found in Table 6.3.\r\n<table>\r\n<thead>\r\n<tr>\r\n<th style=\"text-align: center;\">Table 6.3<\/th>\r\n<\/tr>\r\n<tr>\r\n<th style=\"text-align: center;\">Universal Standards of Reasoning<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td>All reasoning has a purpose.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>All reasoning is an attempt to figure something out, to settle some question, to solve some problem.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>All reasoning is based on assumptions.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>All reasoning is done from some point of view.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>All reasoning is based on data, information, and evidence.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>All reasoning is expressed through, and shaped by, concepts and ideas.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>All reasoning contains inferences or interpretations by which we draw conclusions and give meaning to data.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>All reasoning leads somewhere or has implications and consequences.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<h2><strong>Logic and the Role of Arguments<\/strong><\/h2>\r\n<div class=\"wp-nocaption aligncenter wp-image-908 size-medium\">\r\n\r\n[caption id=\"attachment_908\" align=\"alignright\" width=\"300\"]<a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113649\/Sharia-law-Billboard.jpg\"><img class=\"wp-image-908 size-medium\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113649\/Sharia-law-Billboard-300x136.jpg\" alt=\"Billboard that says Sharia Law threatens America.\" width=\"300\" height=\"136\" \/><\/a> <a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Sharia-law-Billboard.jpg\" target=\"_blank\">\"Sharia Law Billboard\"<\/a> by Matt57. Public domain.[\/caption]\r\n\r\nWe use logic every day. Even if we have never formally studied logical reasoning and fallacies, we can often tell when a person\u2019s statement doesn\u2019t sound right. Think about the claims we see in many advertisements today\u2014Buy product X, and you will be beautiful\/thin\/happy or have the carefree life depicted in the advertisement. With very little critical thought, we know intuitively that simply buying a product will not magically change our lives. Even if we can\u2019t identify the specific fallacy at work in the argument (non causa in this case), we know there is some flaw in the argument.\r\n\r\nBy studying logic and fallacies we can learn to formulate stronger and more cohesive arguments, avoiding problems like that mentioned above. The study of logic has a long history. We can trace the roots of modern logical study back to Aristotle in ancient Greece. Aristotle\u2019s simple definition of logic as the means by which we come to know anything still provides a concise understanding of logic.[footnote]Aristotle. (1989). Prior Analytics (Trans. Robin Smith). Cambridge, MA: Hackett Publishing.[\/footnote] Of the classical pillars of a core liberal arts education of logic, grammar, and rhetoric, logic has developed as a fairly independent branch of philosophical studies. We use logic everyday when we construct statements, argue our point of view, and in myriad other ways. Understanding how logic is used will help us communicate more efficiently and effectively.\r\n<h2><strong>Defining Arguments<\/strong><\/h2>\r\nWhen we think and speak logically, we pull together statements that combine reasoning with evidence to support an assertion, arguments. A logical argument should not be confused with the type of argument you have with your sister or brother or any other person. When you argue with your sibling, you participate in a conflict in which you disagree about something. You may, however, use a logical argument in the midst of the argument with your sibling. Consider this example:\r\n\r\n[caption id=\"attachment_911\" align=\"alignright\" width=\"144\"]<a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113652\/arguing.jpg\"><img class=\"wp-image-911\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113652\/arguing-221x300.jpg\" alt=\"Man and woman arguing\" width=\"144\" height=\"196\" \/><\/a> <a href=\"http:\/\/www.morguefile.com\/archive\/display\/619001\" target=\"_blank\">\"Man and Woman Arguing\"<\/a> by mzacha. <a href=\"http:\/\/www.morguefile.com\/license\/morguefile\" target=\"_blank\">morgueFile<\/a>.[\/caption]\r\n<p style=\"padding-left: 30px;\"><em>Brother and sister, Sydney and Harrison are arguing about whose turn it is to clean their bathroom. Harrison tells Sydney she should do it because she is a girl and girls are better at cleaning. Sydney responds that being a girl has nothing to do with whose turn it is. She reminds Harrison that according to their work chart, they are responsible for cleaning the bathroom on alternate weeks. She tells him she cleaned the bathroom last week; therefore, it is his turn this week. Harrison, still unconvinced, refuses to take responsibility for the chore. Sydney then points to the work chart and shows him where it specifically says it is his turn this week. Defeated, Harrison digs out the cleaning supplies.<\/em><\/p>\r\nThroughout their bathroom argument, both Harrison and Sydney use logical arguments to advance their point. You may ask why Sydney is successful and Harrison is not. This is a good question. Let\u2019s critically think about each of their arguments to see why one fails and one succeeds.\r\n\r\nLet\u2019s start with Harrison\u2019s argument. We can summarize it into three points:\r\n<ol>\r\n \t<li>Girls are better at cleaning bathrooms than boys.<\/li>\r\n \t<li>Sydney is a girl.<\/li>\r\n \t<li>Therefore, Sydney should clean the bathroom.<\/li>\r\n<\/ol>\r\nHarrison\u2019s argument here is a form of deductive reasoning, specifically a syllogism. We will consider syllogisms in a few minutes. For our purposes here, let\u2019s just focus on why Harrison\u2019s argument fails to persuade Sydney. Assuming for the moment that we agree with Harrison\u2019s first two premises, then it would seem that his argument makes sense. We know that Sydney is a girl, so the second premise is true. This leaves the first premise that girls are better at cleaning bathrooms than boys. This is the exact point where Harrison\u2019s argument goes astray. The only way his entire argument will work is if we agree with the assumption girls are better at cleaning bathrooms than boys.\r\n\r\nLet\u2019s now look at Sydney\u2019s argument and why it works. Her argument can be summarized as follows:\r\n<ol>\r\n \t<li>The bathroom responsibilities alternate weekly according to the work chart.<\/li>\r\n \t<li>Sydney cleaned the bathroom last week.<\/li>\r\n \t<li>The chart indicates it is Harrison\u2019s turn to clean the bathroom this week.<\/li>\r\n \t<li>Therefore, Harrison should clean the bathroom.<\/li>\r\n<\/ol>\r\n[caption id=\"attachment_909\" align=\"alignright\" width=\"153\"]<a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113651\/Decorative_toilet_seat.jpg\"><img class=\"wp-image-909\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113651\/Decorative_toilet_seat-226x300.jpg\" alt=\"Toilet seat\" width=\"153\" height=\"203\" \/><\/a> <a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Decorative_toilet_seat.jpg\" target=\"_blank\">\"Decorative toilet seat\"<\/a> by Bartux~commonswikiv. Public domain.[\/caption]\r\n\r\nSydney\u2019s argument here is a form of inductive reasoning. We will look at inductive reasoning in depth\u00a0below. For now, let\u2019s look at why Sydney\u2019s argument succeeds where Harrison\u2019s fails. Unlike Harrison\u2019s argument, which rests on assumption for its truth claims, Sydney\u2019s argument rests on evidence. We can define evidence as anything used to support the validity of an assertion. Evidence includes: testimony, scientific findings, statistics, physical objects, and many others. Sydney uses two primary pieces of evidence: the work chart and her statement that she cleaned the bathroom last week. Because Harrison has no contradictory evidence, he can\u2019t logically refute Sydney\u2019s assertion and is therefore stuck with scrubbing the toilet.\r\n<h2><strong>Defining Deduction<\/strong><\/h2>\r\nDeductive reasoning refers to an argument in which the truth of its premises guarantees the truth of its conclusions. Think back to Harrison\u2019s argument for Sydney cleaning the bathroom. In order for his final claim to be valid, we must accept the truth of his claims that girls are better at cleaning bathrooms than boys. The key focus in deductive arguments is that it must be impossible for the premises to be true and the conclusion to be false. The classic example is:\r\n<p style=\"padding-left: 30px;\">All men are mortal.\r\nSocrates is a man.\r\nTherefore, Socrates is mortal.<\/p>\r\nWe can look at each of these statements individually and see each is true in its own right. It is virtually impossible for the first two propositions to be true and the conclusion to be false. Any argument which fails to meet this standard commits a logical error or fallacy. Even if we might accept the arguments as good and the conclusion as possible, the argument fails as a form of deductive reasoning.\r\n<blockquote>A few observations and much reasoning lead to error; many observations and a little reasoning to truth. - Alexis Carrel<\/blockquote>\r\nAnother way to think of deductive reasoning is to think of it as moving from a general premise to a specific premise. The basic line of reasoning looks like this:\r\n<div class=\"wp-nocaption aligncenter wp-image-912 size-medium\">\r\n\r\n[caption id=\"attachment_912\" align=\"aligncenter\" width=\"250\"]<a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113654\/Basic-Line-of-Reasoning.png\" target=\"_blank\"><img class=\"wp-image-912 size-full\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113654\/Basic-Line-of-Reasoning.png\" alt=\"Major premise to minor premise to conclusion.\" width=\"250\" height=\"473\" \/><\/a> <a href=\"http:\/\/publicspeakingproject.org\/PDF%20Files\/critical%20web%201.pdf\" target=\"_blank\">\"Deductive Reasoning\"<\/a> <a href=\"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/2.0\/\" target=\"_blank\">CC-BY-NC-ND<\/a>.[\/caption]\r\n\r\n<\/div>\r\nThis form of deductive reasoning is called a syllogism. A syllogism need not have only three components to its argument, but it must have at least three. We have Aristotle to thank for identifying the syllogism and making the study of logic much easier. The focus on syllogisms dominated the field of philosophy for thousands of years. In fact, it wasn\u2019t until the early nineteenth century that we began to see the discussion of other types of logic and other forms of logical reasoning.\r\n<blockquote>Logic: the art of thinking and reasoning in strict accordance with the limitations and incapacities of the human misunderstanding. - Ambrose Bierce<\/blockquote>\r\nIt is easy to fall prey to missteps in reasoning when we focus on syllogisms and deductive reasoning. Let\u2019s return to Harrison\u2019s argument and see what happens.\r\n<div class=\"wp-nocaption aligncenter wp-image-913 size-medium\">\r\n\r\n[caption id=\"attachment_913\" align=\"aligncenter\" width=\"313\"]<a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113657\/Applied-Line-of-Reasoning.png\"><img class=\"wp-image-913 size-full\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113657\/Applied-Line-of-Reasoning.png\" alt=\"Girls are better at cleaning bathrooms. Sydney is a girl. Therefore, Sydney should clean the bathroom.\" width=\"313\" height=\"480\" \/><\/a> <a href=\"http:\/\/publicspeakingproject.org\/PDF%20Files\/critical%20web%201.pdf\" target=\"_blank\">\"Applied Deductive Reasoning\"<\/a> <a href=\"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/2.0\/\" target=\"_blank\">CC-BY-NC-ND<\/a>.[\/caption]\r\n\r\n<\/div>\r\nConsidered in this manner, it should be clear how the strength of the conclusion depends upon us accepting as true the first two statements. This need for truth sets up deductive reasoning as a very rigid form of reasoning. If either one of the first two premises isn\u2019t true, then the entire argument fails.\r\n\r\nLet\u2019s turn to recent world events for another example.\r\n<div class=\"wp-nocaption aligncenter wp-image-914 size-medium\">\r\n\r\n[caption id=\"attachment_914\" align=\"aligncenter\" width=\"326\"]<a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113659\/US-Invasion.png\"><img class=\"wp-image-914 size-full\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113659\/US-Invasion.png\" alt=\"The United States should invade any countries holding weapons of mass destruction. According to our experts, Iraq has weapons of mass destruction. Therefore, we should invade Iraq.\" width=\"326\" height=\"482\" \/><\/a> <a href=\"http:\/\/publicspeakingproject.org\/PDF%20Files\/critical%20web%201.pdf\" target=\"_blank\">\"US Invasion Deductive Reasoning Example\"<\/a> <a href=\"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/2.0\/\" target=\"_blank\">CC-BY-NC-ND<\/a>.[\/caption]\r\n\r\n<\/div>\r\nIn the debates over whether the United States should take military action in Iraq, this was the basic line of reasoning used to justify an invasion. This logic was sufficient for the United States to invade Iraq; however, as we have since learned, this line of reasoning also shows how quickly logic can go bad. We subsequently learned that the \u201cexperts\u201d weren\u2019t quite so confident, and their \u201cevidence\u201d wasn\u2019t quite as concrete as originally represented.\r\n<h2><strong>Defining Induction<\/strong><\/h2>\r\nInductive reasoning is often though of as the opposite of deductive reasoning; however, this approach is not wholly accurate. Inductive reasoning does move from the specific to the general. However, this fact alone does not make it the opposite of deductive reasoning. An argument which fails in its deductive reasoning may still stand inductively.\r\n\r\nUnlike deductive reasoning, there is no standard format inductive arguments must take, making them more flexible. We can define an inductive argument as one in which the truth of its propositions lends support to the conclusion. The difference here in deduction is the truth of the propositions establishes with absolute certainty the truth of the conclusion. When we analyze an inductive argument, we do not focus on the truth of its premises. Instead we analyze inductive arguments for their strength or soundness.\r\n<div class=\"wp-nocaption aligncenter size-medium wp-image-915\">\r\n\r\n[caption id=\"attachment_915\" align=\"aligncenter\" width=\"300\"]<a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113700\/Inductive-reasoning.png\"><img class=\"wp-image-915 size-full\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113700\/Inductive-reasoning.png\" alt=\"Case one, Case two, and Case three in a funnel. They come out to form a conclusion.\" width=\"300\" height=\"305\" \/><\/a> <a href=\"http:\/\/publicspeakingproject.org\/PDF%20Files\/critical%20web%201.pdf\" target=\"_blank\">\"Inductive Reasoning Model\"<\/a> <a href=\"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/2.0\/\" target=\"_blank\">CC-BY-NC-ND<\/a>.[\/caption]\r\n\r\n<\/div>\r\nAnother significant difference between deduction and induction is inductive arguments do not have a standard format. Let\u2019s return to Sydney\u2019s argument to see how induction develops in action:\r\n<ol>\r\n \t<li>Bathroom cleaning responsibilities alternate weekly according to the work chart.<\/li>\r\n \t<li>Sydney cleaned the bathroom last week.<\/li>\r\n \t<li>The chart indicates it is Harrison\u2019s turn to clean the bathroom this week.<\/li>\r\n \t<li>Therefore, Harrison should clean the bathroom.<\/li>\r\n<\/ol>\r\nWhat Sydney does here is build to her conclusion that Harrison should clean the bathroom. She begins by stating the general house rule of alternate weeks for cleaning. She then adds in evidence before concluding her argument. While her argument is strong, we don\u2019t know if it is true. There could be other factors Sydney has left out. Sydney may have agreed to take Harrison\u2019s week of bathroom cleaning in exchange for him doing another one of her chores. Or there may be some extenuating circumstances preventing Harrison from bathroom cleaning this week.\r\n<blockquote>You should carefully study the Art of Reasoning, as it is what most people are very deficient in, and I know few things more disagreeable than to argue, or even converse with a man who has no idea of inductive and deductive philosophy. - William John Wills<\/blockquote>\r\nLet\u2019s return to the world stage for another example. After the 9\/11 attacks on the World Trade Center, we heard variations of the following arguments:\r\n<ol>\r\n \t<li>The terrorists were Muslim (or Arab or Middle Eastern)<\/li>\r\n \t<li>The terrorists hated America.<\/li>\r\n \t<li>Therefore, all Muslims (or Arabs or Middle Easterners) hate America.<\/li>\r\n<\/ol>\r\n<div class=\"wp-nocaption aligncenter size-medium wp-image-916\">\r\n\r\n[caption id=\"attachment_916\" align=\"alignright\" width=\"300\"]<a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113701\/WTC_1993_ATF_Commons.jpg\"><img class=\"wp-image-916 size-medium\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113701\/WTC_1993_ATF_Commons-300x201.jpg\" alt=\"Rubble of the World Trade Center.\" width=\"300\" height=\"201\" \/><\/a> <a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:WTC_1993_ATF_Commons.jpg\" target=\"_blank\">\"1993 Word Trade Center bombing\"<\/a> by Bureau of ATF 1993 Explosives Incident Report. Public domain.[\/caption]\r\n\r\n<\/div>\r\nClearly, we can see the problem in this line of reasoning. Beyond being a scary example of hyperbolic rhetoric, we can all probably think of at least one counter example to disprove the conclusion. However, individual passions and biases caused many otherwise rational people to say these things in the weeks following the attacks. This example also clearly illustrates how easy it is to get tripped up in your use of logic and the importance of practicing self-regulation.\r\n\r\n<\/div>\r\n<\/div>","rendered":"<p>Critical thinkers tend to exhibit certain traits that are common to them. These traits are summarized in Table 6.1:<a class=\"footnote\" title=\"Adapted from Facione, P. A. (1990). Critical Thinking: A Statement of Expert Consensus for Purposes of Educational Assessment and Instruction, The Delphi Report (Executive Summary). Millbrae, CA: California Academic Press.\" id=\"return-footnote-868-1\" href=\"#footnote-868-1\" aria-label=\"Footnote 1\"><sup class=\"footnote\">[1]<\/sup><\/a><\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: center;\" colspan=\"2\">Table 6.1 Traits of Critical Thinkers<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Open-mindedness<\/strong><\/td>\n<td>Critical thinkers are open and receptive to all ideas and arguments, even those with which they may disagree. Critical thinkers reserve judgment on a message until they have examined the claims, logic, reasoning, and evidence used. Critical thinkers are fair-minded and understand that a message is not inherently wrong or flawed if it differs from their own thoughts. Critical thinkers remain open to the possibility of changing their view on an issue when logic and evidence supports doing so.<\/td>\n<\/tr>\n<tr>\n<td><strong>Analytic Nature<\/strong><\/td>\n<td>Critical thinkers are interested in understanding what is happening in a message. Critical thinkers ask questions of the message, breaking it into its individual components and examining each in turn. Critical thinkers dissect these components looking for sound logic and reasoning.<\/td>\n<\/tr>\n<tr>\n<td><strong>Systematic by Method<\/strong><\/td>\n<td>Critical thinkers avoid jumping to conclusions. Critical thinkers take the time to systematically examine a message. Critical thinkers apply accepted criteria or conditions to their analyses.<\/td>\n<\/tr>\n<tr>\n<td><strong>Inquisitive<\/strong><\/td>\n<td>Critical thinkers are curious by nature. Critical thinkers ask questions of what is going on around them and in a message. Critical thinkers want to know more and take action to learn more.<\/td>\n<\/tr>\n<tr>\n<td><strong>Judicious<\/strong><\/td>\n<td>Critical thinkers are prudent in acting and making judgments. Critical thinkers are sensible in their actions. That is, they don&#8217;t just jump on the bandwagon of common thought because it looks good or everyone else is doing it.<\/td>\n<\/tr>\n<tr>\n<td><strong>Truth-Seeking Ethos<\/strong><\/td>\n<td>Critical thinkers exercise an ethical foundation based in searching for the truth. Critical thinkers understand that even the wisest people may be wrong at times.<\/td>\n<\/tr>\n<tr>\n<td><strong>Confident in Reasoning<\/strong><\/td>\n<td>Critical thinkers have faith in the power of logic and sound reasoning. Critical thinkers understand that it is in everyone&#8217;s best interest to encourage and develop sound logic. More importantly, critical thinkers value the power of letting others draw their own conclusions.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"wp-nocaption aligncenter wp-image-895\">Recall that critical thinking is an active mode of thinking. Instead of just receiving messages and accepting them as is, we consider what they are saying. We ask if messages are well-supported. We determine if their logic is sound or slightly flawed. In other words, we act on the messages before we take action based on them. When we enact critical thinking on a message, we engage a variety of skills including: listening, analysis, evaluation, inference and interpretation or explanation, and self-regulation<a class=\"footnote\" title=\"Adapted from Facione, P. A. (1990).\" id=\"return-footnote-868-2\" href=\"#footnote-868-2\" aria-label=\"Footnote 2\"><sup class=\"footnote\">[2]<\/sup><\/a><\/div>\n<div id=\"attachment_898\" style=\"width: 310px\" class=\"wp-caption alignright\"><a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113644\/Martha_Stewart_nrkbeta.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-898\" class=\"wp-image-898 size-medium\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113644\/Martha_Stewart_nrkbeta-300x199.jpg\" alt=\"Martha Stewart\" width=\"300\" height=\"199\" \/><\/a><\/p>\n<p id=\"caption-attachment-898\" class=\"wp-caption-text\">&#8220;<a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Martha_Stewart_nrkbeta.jpg\">Martha Stewart<\/a>&#8221; by\u00a0nrkbeta.\u00a0<a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/2.0\/deed.en\">CC-BY-SA<\/a>.<\/p>\n<\/div>\n<p>Next, we will examine each of these skills and their role in critical thinking in greater detail. As you read through the explanation of and examples for each skill, think about how it works in conjunction with the others. It\u2019s important to note that while our discussion of the skills is presented in a linear manner, in practice our use of each skill is not so straightforward. We may exercise different skills simultaneously or jump forward and backward.<\/p>\n<p>&nbsp;<\/p>\n<blockquote><p>Without an open-minded mind, you can never be a great success. &#8211; Martha Stewart<\/p><\/blockquote>\n<h2>Listening<\/h2>\n<p>In order to understand listening, we must first understand the difference between <strong><em>listening<\/em><\/strong> and <em><strong>hearing<\/strong><\/em>. At its most basic, hearing refers to the <em>physiological<\/em> process of receiving sounds, while listening refers to the\u00a0<em>psychological<\/em> process of interpreting or making sense of those sounds.<\/p>\n<p>Every minute of every day we are surrounded by hundreds of different noises and sounds. If we were to try to make sense of each different sound we would probably spend our day just doing this. While we may hear all of the noises, we filter out many of them. They pass through our lives without further notice. Certain noises, however, jump to the forefront of our consciousness. As we listen to them, we make sense of these sounds. We do this every day without necessarily thinking about the process. Like many other bodily functions, it happens without our willing it to happen.<\/p>\n<p>Critical thinking requires that we consciously listen to messages. We must focus on what is being said \u2013 and not said. We must strive not to be distracted by other outside noises or the internal noise of our own preconceived ideas. For the moment we only need to take in the message.<\/p>\n<p>Listening becomes especially difficult when the message contains highly charged information. Think about what happens when you try to discuss a controversial issue such as abortion. As the other person speaks, you may have every good intention of listening to the entire argument.<\/p>\n<p>However, when the person says something you feel strongly about you start formulating a counter-argument in your head. The end result is that both sides end up talking past each other without ever really listening to what the other says.<\/p>\n<h2>Analysis<\/h2>\n<p>Once we have listened to a message, we can begin to analyze it. In practice we often begin analyzing messages while still listening to them. When we analyze something, we consider it in greater detail, separating out the main components of the message. In a sense, we are acting like a surgeon on the message, carving out all of the different elements and laying them out for further consideration and possible action.<\/p>\n<p>Let\u2019s return to Shonda\u2019s persuasive speech to see analysis in action. As part of the needs section of her speech, Shonda makes the following remarks:<\/p>\n<p style=\"padding-left: 30px;\"><em>Americans today are some of the unhealthiest people on Earth. It seems like not a week goes by without some news story relating how we are the fattest country in the world. In addition to being overweight, we suffer from a number of other health problems. When I was conducting research for my speech, I read somewhere that heart attacks are the number one killer of men and the number two killer of women. Think about that. My uncle had a heart attack and had to be rushed to the hospital. They hooked him up to a bunch of different machines to keep him alive. We all thought he was going to die. He\u2019s ok now, but he has to take a bunch of pills every day and eat a special diet. Plus he had to pay thousands of dollars in medical bills. Wouldn\u2019t you like to know how to prevent this from happening to you?<\/em><\/p>\n<p>If we were to analyze this part of Shonda\u2019s speech (see Table 6.2), we could begin by looking at the claims she makes. We could then look at the evidence she presents in support of these claims. Having parsed out the various elements, we are then ready to evaluate them and by extension the message as a whole.<\/p>\n<h2>Evaluation<\/h2>\n<p>When we evaluate something we continue the process of analysis by assessing the various claims and arguments for validity. One way we evaluate a message is to ask questions about what is being said and who is saying it. The following is a list of typical questions we may ask, along with an evaluation of the ideas in Shonda\u2019s speech.<\/p>\n<h3><strong>Is the speaker credible?<\/strong><\/h3>\n<p>Yes. While Shonda may not be an expert per se on the issue of health benefits related to wine, she has made herself a mini-expert through conducting research.<\/p>\n<h3><strong>Does the statement ring true or false based on common sense?<\/strong><\/h3>\n<p>It sounds kind of fishy. Four or more glasses of wine in one sitting doesn\u2019t seem right. In fact, it seems like it might be bordering on binge drinking.<\/p>\n<h3><strong>Does the logic employed hold up to scrutiny?<\/strong><\/h3>\n<p>Based on the little bit of Shonda\u2019s speech we see here, her logic does seem to be sound. As we will see later on, she actually commits a few fallacies.<\/p>\n<h3><strong>What questions or objections are raised by the message?<\/strong><\/h3>\n<p>In addition to the possibility of Shonda\u2019s proposal being binge drinking, it also raises the possibility of creating alcoholism or causing other long term health problems.<\/p>\n<h3><strong>How will further information affect the message?<\/strong><\/h3>\n<p>More information will probably contradict her claims. In fact, most medical research in this area contradicts the claim that drinking 4 or more glasses of wine a day is a good thing.<\/p>\n<h3><strong>Will further information strengthen or weaken the claims?<\/strong><\/h3>\n<p>Most likely Shonda\u2019s claims will be weakened.<\/p>\n<h3><strong>What questions or objections are raised by the claims?<\/strong><\/h3>\n<p>In addition to the objections we\u2019ve already discussed, there is also the problem of the credibility of Shonda\u2019s expert \u201cdoctor.\u201d<\/p>\n<div class=\"wp-nocaption aligncenter wp-image-896\">\n<table>\n<thead>\n<tr>\n<th style=\"text-align: center;\" colspan=\"2\">Table 6.2 Analysis of Shonda&#8217;s Speech<\/th>\n<\/tr>\n<tr>\n<th style=\"text-align: center;\">Claims<\/th>\n<th style=\"text-align: center;\">Evidence<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n<ul>\n<li>Americans are unhealthy<\/li>\n<li>American is the fattest country<\/li>\n<li>Americans suffer from many health problems<\/li>\n<li>Heart attacks are the number one killer of men<\/li>\n<li>Heart attacks are the number-two killer of women<\/li>\n<\/ul>\n<\/td>\n<td>\n<ul>\n<li>Some news stories about America as the fattest country<\/li>\n<li>Research about heart attacks<\/li>\n<li>Story of her uncle&#8217;s heart attack<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote><p>A wise man proportions his belief to the evidence. &#8211; David Hume<\/p><\/blockquote>\n<\/div>\n<h2><strong>Inference and Interpretation or Explanation<\/strong><\/h2>\n<h3><strong>\u201cImply\u201d or \u201cInfer\u201d?<\/strong><\/h3>\n<p>For two relatively small words, imply and infer seem to generate an inordinately large amount of confusion. Understanding the difference between the two and knowing when to use the right one is not only a useful skill, but it also makes you sound a lot smarter!<\/p>\n<p>Let\u2019s begin with imply. Imply means to suggest or convey an idea. A speaker or a piece of writing implies things. For example, in Shonda\u2019s speech, she implies it is better to drink more red wine. In other words, she never directly says that we need to drink more red wine, but she clearly hints at it when she suggests that drinking four or more glasses a day will provide us with health benefits.<\/p>\n<p>Now let\u2019s consider infer. Infer means that something in a speaker\u2019s words or a piece of writing helps us to draw a conclusion outside of his\/her words. We infer a conclusion. Returning to Shonda\u2019s speech, we can infer she would want us to drink more red wine rather than less. She never comes right out and says this. However, by considering her overall message, we can draw this conclusion.<\/p>\n<p>Another way to think of the difference between imply and infer is: A speaker (or writer for that matter) implies.\u00a0The audience infers.<\/p>\n<p>Therefore, it would be incorrect to say that Shonda infers we should drink more rather than less wine. She implies this. To help you differentiate between the two, remember that an inference is something that comes from outside the spoken or written text.<\/p>\n<p>The next step in critically examining a message is to interpret or explain the conclusions that we draw from it. At this phase we consider the evidence and the claims together. In effect we are reassembling the components that we parsed out during analysis. We are continuing our evaluation by looking at the evidence, alternatives, and possible conclusions.<\/p>\n<p>Before we draw any inferences or attempt any explanations, we should look at the evidence provided. When we consider evidence we must first determine what, if any, kind of support is provided. Of the evidence we then ask:<\/p>\n<ol>\n<li>Is the evidence sound?<\/li>\n<li>Does the evidence say what thespeaker says it does?<\/li>\n<li>Does contradictory evidenceexist?<\/li>\n<li>Is the evidence from a validcredible source?<\/li>\n<\/ol>\n<div id=\"attachment_899\" style=\"width: 148px\" class=\"wp-caption alignright\"><a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113646\/Seat_belt_BX.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-899\" class=\"wp-image-899\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113646\/Seat_belt_BX-225x300.jpg\" alt=\"Seatbelt\" width=\"138\" height=\"184\" \/><\/a><\/p>\n<p id=\"caption-attachment-899\" class=\"wp-caption-text\"><a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Seat_belt_BX.jpg\" target=\"_blank\">Seatbelt<\/a> by M.Minderhoud, <a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/3.0\/deed.en\" target=\"_blank\">CC-BY-SA<\/a>.<\/p>\n<\/div>\n<p>Even though these are set up as yes or no questions, you\u2019ll probably find in practice that your answers are a bit more complex. For example, let\u2019s say you\u2019re writing a speech on why we should wear our seatbelts at all times while driving. You\u2019ve researched the topic and found solid, credible information setting forth the numerous reasons why wearing a seatbelt can help save your life and decrease the number of injuries experienced during a motor vehicle accident. Certainly, there exists contradictory evidence arguing seat belts can cause more injuries. For example, if you\u2019re in an accident where your car is partially submerged in water, wearing a seatbelt may impede your ability to quickly exit the vehicle. Does the fact that this evidence exists negate your claims? Probably not, but you need to be thorough in evaluating and considering how you use your evidence.<\/p>\n<blockquote><p>A man who does not think for himself does not think at all. &#8211; Oscar Wilde<\/p><\/blockquote>\n<h2><strong>Self-Regulation<\/strong><\/h2>\n<p>The final step in critically examining a message is actually a skill we should exercise throughout the entire process. With self-regulation, we consider our pre-existing thoughts on the subject and any biases we may have. We examine how what we think on an issue may have influenced the way we understand (or think we understand) the message and any conclusions we have drawn. Just as contradictory evidence doesn\u2019t automatically negate our claims or invalidate our arguments, our biases don\u2019t necessarily make our conclusions wrong. The goal of practicing self-regulation is not to disavow or deny our opinions. The goal is to create distance between our opinions and the messages we evaluate.<\/p>\n<div class=\"wp-nocaption aligncenter size-medium wp-image-900\">\n<h2><strong>The Value of Critical Thinking<\/strong><\/h2>\n<p>In public speaking, the value of being a critical thinker cannot be overstressed. Critical thinking helps us to determine the truth or validity of arguments. However, it also helps us to formulate strong arguments for our speeches. Exercising critical thinking at all steps of the speech writing and delivering process can help us avoid situations like Shonda found herself in. Critical thinking is not a magical panacea that will make us super speakers. However, it is another tool that we can add to our speech toolbox.<\/p>\n<blockquote><p>When the mind is thinking, it is talking to itself. &#8211; Plato<\/p><\/blockquote>\n<p>As we will learn in the following pages, we construct arguments based on logic. Understanding the ways logic can be used and possibly misused is a vital skill. To help stress the importance of it, the Foundation for Critical Thinking has set forth universal standards of reasoning. These standards can be found in Table 6.3.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: center;\">Table 6.3<\/th>\n<\/tr>\n<tr>\n<th style=\"text-align: center;\">Universal Standards of Reasoning<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>All reasoning has a purpose.<\/td>\n<\/tr>\n<tr>\n<td>All reasoning is an attempt to figure something out, to settle some question, to solve some problem.<\/td>\n<\/tr>\n<tr>\n<td>All reasoning is based on assumptions.<\/td>\n<\/tr>\n<tr>\n<td>All reasoning is done from some point of view.<\/td>\n<\/tr>\n<tr>\n<td>All reasoning is based on data, information, and evidence.<\/td>\n<\/tr>\n<tr>\n<td>All reasoning is expressed through, and shaped by, concepts and ideas.<\/td>\n<\/tr>\n<tr>\n<td>All reasoning contains inferences or interpretations by which we draw conclusions and give meaning to data.<\/td>\n<\/tr>\n<tr>\n<td>All reasoning leads somewhere or has implications and consequences.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><strong>Logic and the Role of Arguments<\/strong><\/h2>\n<div class=\"wp-nocaption aligncenter wp-image-908 size-medium\">\n<div id=\"attachment_908\" style=\"width: 310px\" class=\"wp-caption alignright\"><a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113649\/Sharia-law-Billboard.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-908\" class=\"wp-image-908 size-medium\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113649\/Sharia-law-Billboard-300x136.jpg\" alt=\"Billboard that says Sharia Law threatens America.\" width=\"300\" height=\"136\" \/><\/a><\/p>\n<p id=\"caption-attachment-908\" class=\"wp-caption-text\"><a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Sharia-law-Billboard.jpg\" target=\"_blank\">&#8220;Sharia Law Billboard&#8221;<\/a> by Matt57. Public domain.<\/p>\n<\/div>\n<p>We use logic every day. Even if we have never formally studied logical reasoning and fallacies, we can often tell when a person\u2019s statement doesn\u2019t sound right. Think about the claims we see in many advertisements today\u2014Buy product X, and you will be beautiful\/thin\/happy or have the carefree life depicted in the advertisement. With very little critical thought, we know intuitively that simply buying a product will not magically change our lives. Even if we can\u2019t identify the specific fallacy at work in the argument (non causa in this case), we know there is some flaw in the argument.<\/p>\n<p>By studying logic and fallacies we can learn to formulate stronger and more cohesive arguments, avoiding problems like that mentioned above. The study of logic has a long history. We can trace the roots of modern logical study back to Aristotle in ancient Greece. Aristotle\u2019s simple definition of logic as the means by which we come to know anything still provides a concise understanding of logic.<a class=\"footnote\" title=\"Aristotle. (1989). Prior Analytics (Trans. Robin Smith). Cambridge, MA: Hackett Publishing.\" id=\"return-footnote-868-3\" href=\"#footnote-868-3\" aria-label=\"Footnote 3\"><sup class=\"footnote\">[3]<\/sup><\/a> Of the classical pillars of a core liberal arts education of logic, grammar, and rhetoric, logic has developed as a fairly independent branch of philosophical studies. We use logic everyday when we construct statements, argue our point of view, and in myriad other ways. Understanding how logic is used will help us communicate more efficiently and effectively.<\/p>\n<h2><strong>Defining Arguments<\/strong><\/h2>\n<p>When we think and speak logically, we pull together statements that combine reasoning with evidence to support an assertion, arguments. A logical argument should not be confused with the type of argument you have with your sister or brother or any other person. When you argue with your sibling, you participate in a conflict in which you disagree about something. You may, however, use a logical argument in the midst of the argument with your sibling. Consider this example:<\/p>\n<div id=\"attachment_911\" style=\"width: 154px\" class=\"wp-caption alignright\"><a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113652\/arguing.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-911\" class=\"wp-image-911\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113652\/arguing-221x300.jpg\" alt=\"Man and woman arguing\" width=\"144\" height=\"196\" \/><\/a><\/p>\n<p id=\"caption-attachment-911\" class=\"wp-caption-text\"><a href=\"http:\/\/www.morguefile.com\/archive\/display\/619001\" target=\"_blank\">&#8220;Man and Woman Arguing&#8221;<\/a> by mzacha. <a href=\"http:\/\/www.morguefile.com\/license\/morguefile\" target=\"_blank\">morgueFile<\/a>.<\/p>\n<\/div>\n<p style=\"padding-left: 30px;\"><em>Brother and sister, Sydney and Harrison are arguing about whose turn it is to clean their bathroom. Harrison tells Sydney she should do it because she is a girl and girls are better at cleaning. Sydney responds that being a girl has nothing to do with whose turn it is. She reminds Harrison that according to their work chart, they are responsible for cleaning the bathroom on alternate weeks. She tells him she cleaned the bathroom last week; therefore, it is his turn this week. Harrison, still unconvinced, refuses to take responsibility for the chore. Sydney then points to the work chart and shows him where it specifically says it is his turn this week. Defeated, Harrison digs out the cleaning supplies.<\/em><\/p>\n<p>Throughout their bathroom argument, both Harrison and Sydney use logical arguments to advance their point. You may ask why Sydney is successful and Harrison is not. This is a good question. Let\u2019s critically think about each of their arguments to see why one fails and one succeeds.<\/p>\n<p>Let\u2019s start with Harrison\u2019s argument. We can summarize it into three points:<\/p>\n<ol>\n<li>Girls are better at cleaning bathrooms than boys.<\/li>\n<li>Sydney is a girl.<\/li>\n<li>Therefore, Sydney should clean the bathroom.<\/li>\n<\/ol>\n<p>Harrison\u2019s argument here is a form of deductive reasoning, specifically a syllogism. We will consider syllogisms in a few minutes. For our purposes here, let\u2019s just focus on why Harrison\u2019s argument fails to persuade Sydney. Assuming for the moment that we agree with Harrison\u2019s first two premises, then it would seem that his argument makes sense. We know that Sydney is a girl, so the second premise is true. This leaves the first premise that girls are better at cleaning bathrooms than boys. This is the exact point where Harrison\u2019s argument goes astray. The only way his entire argument will work is if we agree with the assumption girls are better at cleaning bathrooms than boys.<\/p>\n<p>Let\u2019s now look at Sydney\u2019s argument and why it works. Her argument can be summarized as follows:<\/p>\n<ol>\n<li>The bathroom responsibilities alternate weekly according to the work chart.<\/li>\n<li>Sydney cleaned the bathroom last week.<\/li>\n<li>The chart indicates it is Harrison\u2019s turn to clean the bathroom this week.<\/li>\n<li>Therefore, Harrison should clean the bathroom.<\/li>\n<\/ol>\n<div id=\"attachment_909\" style=\"width: 163px\" class=\"wp-caption alignright\"><a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113651\/Decorative_toilet_seat.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-909\" class=\"wp-image-909\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113651\/Decorative_toilet_seat-226x300.jpg\" alt=\"Toilet seat\" width=\"153\" height=\"203\" \/><\/a><\/p>\n<p id=\"caption-attachment-909\" class=\"wp-caption-text\"><a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Decorative_toilet_seat.jpg\" target=\"_blank\">&#8220;Decorative toilet seat&#8221;<\/a> by Bartux~commonswikiv. Public domain.<\/p>\n<\/div>\n<p>Sydney\u2019s argument here is a form of inductive reasoning. We will look at inductive reasoning in depth\u00a0below. For now, let\u2019s look at why Sydney\u2019s argument succeeds where Harrison\u2019s fails. Unlike Harrison\u2019s argument, which rests on assumption for its truth claims, Sydney\u2019s argument rests on evidence. We can define evidence as anything used to support the validity of an assertion. Evidence includes: testimony, scientific findings, statistics, physical objects, and many others. Sydney uses two primary pieces of evidence: the work chart and her statement that she cleaned the bathroom last week. Because Harrison has no contradictory evidence, he can\u2019t logically refute Sydney\u2019s assertion and is therefore stuck with scrubbing the toilet.<\/p>\n<h2><strong>Defining Deduction<\/strong><\/h2>\n<p>Deductive reasoning refers to an argument in which the truth of its premises guarantees the truth of its conclusions. Think back to Harrison\u2019s argument for Sydney cleaning the bathroom. In order for his final claim to be valid, we must accept the truth of his claims that girls are better at cleaning bathrooms than boys. The key focus in deductive arguments is that it must be impossible for the premises to be true and the conclusion to be false. The classic example is:<\/p>\n<p style=\"padding-left: 30px;\">All men are mortal.<br \/>\nSocrates is a man.<br \/>\nTherefore, Socrates is mortal.<\/p>\n<p>We can look at each of these statements individually and see each is true in its own right. It is virtually impossible for the first two propositions to be true and the conclusion to be false. Any argument which fails to meet this standard commits a logical error or fallacy. Even if we might accept the arguments as good and the conclusion as possible, the argument fails as a form of deductive reasoning.<\/p>\n<blockquote><p>A few observations and much reasoning lead to error; many observations and a little reasoning to truth. &#8211; Alexis Carrel<\/p><\/blockquote>\n<p>Another way to think of deductive reasoning is to think of it as moving from a general premise to a specific premise. The basic line of reasoning looks like this:<\/p>\n<div class=\"wp-nocaption aligncenter wp-image-912 size-medium\">\n<div id=\"attachment_912\" style=\"width: 260px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113654\/Basic-Line-of-Reasoning.png\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-912\" class=\"wp-image-912 size-full\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113654\/Basic-Line-of-Reasoning.png\" alt=\"Major premise to minor premise to conclusion.\" width=\"250\" height=\"473\" \/><\/a><\/p>\n<p id=\"caption-attachment-912\" class=\"wp-caption-text\"><a href=\"http:\/\/publicspeakingproject.org\/PDF%20Files\/critical%20web%201.pdf\" target=\"_blank\">&#8220;Deductive Reasoning&#8221;<\/a> <a href=\"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/2.0\/\" target=\"_blank\">CC-BY-NC-ND<\/a>.<\/p>\n<\/div>\n<\/div>\n<p>This form of deductive reasoning is called a syllogism. A syllogism need not have only three components to its argument, but it must have at least three. We have Aristotle to thank for identifying the syllogism and making the study of logic much easier. The focus on syllogisms dominated the field of philosophy for thousands of years. In fact, it wasn\u2019t until the early nineteenth century that we began to see the discussion of other types of logic and other forms of logical reasoning.<\/p>\n<blockquote><p>Logic: the art of thinking and reasoning in strict accordance with the limitations and incapacities of the human misunderstanding. &#8211; Ambrose Bierce<\/p><\/blockquote>\n<p>It is easy to fall prey to missteps in reasoning when we focus on syllogisms and deductive reasoning. Let\u2019s return to Harrison\u2019s argument and see what happens.<\/p>\n<div class=\"wp-nocaption aligncenter wp-image-913 size-medium\">\n<div id=\"attachment_913\" style=\"width: 323px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113657\/Applied-Line-of-Reasoning.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-913\" class=\"wp-image-913 size-full\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113657\/Applied-Line-of-Reasoning.png\" alt=\"Girls are better at cleaning bathrooms. Sydney is a girl. Therefore, Sydney should clean the bathroom.\" width=\"313\" height=\"480\" \/><\/a><\/p>\n<p id=\"caption-attachment-913\" class=\"wp-caption-text\"><a href=\"http:\/\/publicspeakingproject.org\/PDF%20Files\/critical%20web%201.pdf\" target=\"_blank\">&#8220;Applied Deductive Reasoning&#8221;<\/a> <a href=\"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/2.0\/\" target=\"_blank\">CC-BY-NC-ND<\/a>.<\/p>\n<\/div>\n<\/div>\n<p>Considered in this manner, it should be clear how the strength of the conclusion depends upon us accepting as true the first two statements. This need for truth sets up deductive reasoning as a very rigid form of reasoning. If either one of the first two premises isn\u2019t true, then the entire argument fails.<\/p>\n<p>Let\u2019s turn to recent world events for another example.<\/p>\n<div class=\"wp-nocaption aligncenter wp-image-914 size-medium\">\n<div id=\"attachment_914\" style=\"width: 336px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113659\/US-Invasion.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-914\" class=\"wp-image-914 size-full\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113659\/US-Invasion.png\" alt=\"The United States should invade any countries holding weapons of mass destruction. According to our experts, Iraq has weapons of mass destruction. Therefore, we should invade Iraq.\" width=\"326\" height=\"482\" \/><\/a><\/p>\n<p id=\"caption-attachment-914\" class=\"wp-caption-text\"><a href=\"http:\/\/publicspeakingproject.org\/PDF%20Files\/critical%20web%201.pdf\" target=\"_blank\">&#8220;US Invasion Deductive Reasoning Example&#8221;<\/a> <a href=\"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/2.0\/\" target=\"_blank\">CC-BY-NC-ND<\/a>.<\/p>\n<\/div>\n<\/div>\n<p>In the debates over whether the United States should take military action in Iraq, this was the basic line of reasoning used to justify an invasion. This logic was sufficient for the United States to invade Iraq; however, as we have since learned, this line of reasoning also shows how quickly logic can go bad. We subsequently learned that the \u201cexperts\u201d weren\u2019t quite so confident, and their \u201cevidence\u201d wasn\u2019t quite as concrete as originally represented.<\/p>\n<h2><strong>Defining Induction<\/strong><\/h2>\n<p>Inductive reasoning is often though of as the opposite of deductive reasoning; however, this approach is not wholly accurate. Inductive reasoning does move from the specific to the general. However, this fact alone does not make it the opposite of deductive reasoning. An argument which fails in its deductive reasoning may still stand inductively.<\/p>\n<p>Unlike deductive reasoning, there is no standard format inductive arguments must take, making them more flexible. We can define an inductive argument as one in which the truth of its propositions lends support to the conclusion. The difference here in deduction is the truth of the propositions establishes with absolute certainty the truth of the conclusion. When we analyze an inductive argument, we do not focus on the truth of its premises. Instead we analyze inductive arguments for their strength or soundness.<\/p>\n<div class=\"wp-nocaption aligncenter size-medium wp-image-915\">\n<div id=\"attachment_915\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113700\/Inductive-reasoning.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-915\" class=\"wp-image-915 size-full\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113700\/Inductive-reasoning.png\" alt=\"Case one, Case two, and Case three in a funnel. They come out to form a conclusion.\" width=\"300\" height=\"305\" \/><\/a><\/p>\n<p id=\"caption-attachment-915\" class=\"wp-caption-text\"><a href=\"http:\/\/publicspeakingproject.org\/PDF%20Files\/critical%20web%201.pdf\" target=\"_blank\">&#8220;Inductive Reasoning Model&#8221;<\/a> <a href=\"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/2.0\/\" target=\"_blank\">CC-BY-NC-ND<\/a>.<\/p>\n<\/div>\n<\/div>\n<p>Another significant difference between deduction and induction is inductive arguments do not have a standard format. Let\u2019s return to Sydney\u2019s argument to see how induction develops in action:<\/p>\n<ol>\n<li>Bathroom cleaning responsibilities alternate weekly according to the work chart.<\/li>\n<li>Sydney cleaned the bathroom last week.<\/li>\n<li>The chart indicates it is Harrison\u2019s turn to clean the bathroom this week.<\/li>\n<li>Therefore, Harrison should clean the bathroom.<\/li>\n<\/ol>\n<p>What Sydney does here is build to her conclusion that Harrison should clean the bathroom. She begins by stating the general house rule of alternate weeks for cleaning. She then adds in evidence before concluding her argument. While her argument is strong, we don\u2019t know if it is true. There could be other factors Sydney has left out. Sydney may have agreed to take Harrison\u2019s week of bathroom cleaning in exchange for him doing another one of her chores. Or there may be some extenuating circumstances preventing Harrison from bathroom cleaning this week.<\/p>\n<blockquote><p>You should carefully study the Art of Reasoning, as it is what most people are very deficient in, and I know few things more disagreeable than to argue, or even converse with a man who has no idea of inductive and deductive philosophy. &#8211; William John Wills<\/p><\/blockquote>\n<p>Let\u2019s return to the world stage for another example. After the 9\/11 attacks on the World Trade Center, we heard variations of the following arguments:<\/p>\n<ol>\n<li>The terrorists were Muslim (or Arab or Middle Eastern)<\/li>\n<li>The terrorists hated America.<\/li>\n<li>Therefore, all Muslims (or Arabs or Middle Easterners) hate America.<\/li>\n<\/ol>\n<div class=\"wp-nocaption aligncenter size-medium wp-image-916\">\n<div id=\"attachment_916\" style=\"width: 310px\" class=\"wp-caption alignright\"><a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113701\/WTC_1993_ATF_Commons.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-916\" class=\"wp-image-916 size-medium\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/224\/2015\/02\/20113701\/WTC_1993_ATF_Commons-300x201.jpg\" alt=\"Rubble of the World Trade Center.\" width=\"300\" height=\"201\" \/><\/a><\/p>\n<p id=\"caption-attachment-916\" class=\"wp-caption-text\"><a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:WTC_1993_ATF_Commons.jpg\" target=\"_blank\">&#8220;1993 Word Trade Center bombing&#8221;<\/a> by Bureau of ATF 1993 Explosives Incident Report. Public domain.<\/p>\n<\/div>\n<\/div>\n<p>Clearly, we can see the problem in this line of reasoning. Beyond being a scary example of hyperbolic rhetoric, we can all probably think of at least one counter example to disprove the conclusion. However, individual passions and biases caused many otherwise rational people to say these things in the weeks following the attacks. This example also clearly illustrates how easy it is to get tripped up in your use of logic and the importance of practicing self-regulation.<\/p>\n<\/div>\n<\/div>\n\n\t\t\t <section class=\"citations-section\" role=\"contentinfo\">\n\t\t\t <h3>Candela Citations<\/h3>\n\t\t\t\t\t <div>\n\t\t\t\t\t\t <div id=\"citation-list-868\">\n\t\t\t\t\t\t\t <div class=\"licensing\"><div class=\"license-attribution-dropdown-subheading\">CC licensed content, Original<\/div><ul class=\"citation-list\"><li>Image of man and woman arguing. <strong>Authored by<\/strong>: mzacha. <strong>Provided by<\/strong>: MorgueFile. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"http:\/\/mrg.bz\/ynkIUa\">http:\/\/mrg.bz\/ynkIUa<\/a>. <strong>License<\/strong>: <em>All Rights Reserved<\/em>. <strong>License Terms<\/strong>: Free to remix, commercial use, no attribution required.   http:\/\/www.morguefile.com\/license\/morguefile<\/li><\/ul><div class=\"license-attribution-dropdown-subheading\">CC licensed content, Shared previously<\/div><ul class=\"citation-list\"><li>Chapter 6 Logic and the Role of Arguments. <strong>Authored by<\/strong>: Terri Russ, J.D., Ph.D.. <strong>Provided by<\/strong>: Saint Mary&#039;s College, Notre Dame, IN. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"http:\/\/publicspeakingproject.org\/psvirtualtext.html\">http:\/\/publicspeakingproject.org\/psvirtualtext.html<\/a>. <strong>Project<\/strong>: The Public Speaking Project. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/\">CC BY-NC-ND: Attribution-NonCommercial-NoDerivatives <\/a><\/em><\/li><li>Martha Stewart nrkbeta. <strong>Authored by<\/strong>: nrkbeta. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"http:\/\/commons.wikimedia.org\/wiki\/File:Martha_Stewart_nrkbeta.jpg\">http:\/\/commons.wikimedia.org\/wiki\/File:Martha_Stewart_nrkbeta.jpg<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/\">CC BY-SA: Attribution-ShareAlike<\/a><\/em><\/li><li>Seat belt BX. <strong>Authored by<\/strong>: M.Minderhoud. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"http:\/\/commons.wikimedia.org\/wiki\/File:Seat_belt_BX.jpg\">http:\/\/commons.wikimedia.org\/wiki\/File:Seat_belt_BX.jpg<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/\">CC BY-SA: Attribution-ShareAlike<\/a><\/em><\/li><\/ul><div class=\"license-attribution-dropdown-subheading\">Public domain content<\/div><ul class=\"citation-list\"><li>Sharia-Law-Billboard. <strong>Authored by<\/strong>: Matt57. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"http:\/\/commons.wikimedia.org\/wiki\/File:Sharia-law-Billboard.jpg\">http:\/\/commons.wikimedia.org\/wiki\/File:Sharia-law-Billboard.jpg<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/about\/pdm\">Public Domain: No Known Copyright<\/a><\/em><\/li><li>Decorative toilet seat. <strong>Authored by<\/strong>: Bartux. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"http:\/\/commons.wikimedia.org\/wiki\/File:Decorative_toilet_seat.jpg%20\">http:\/\/commons.wikimedia.org\/wiki\/File:Decorative_toilet_seat.jpg%20<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/about\/pdm\">Public Domain: No Known Copyright<\/a><\/em><\/li><li>Image of 1993 World Trade Center bombing. <strong>Provided by<\/strong>: Bureau of ATF 1993 Explosives Incident Report. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"http:\/\/commons.wikimedia.org\/wiki\/File:WTC_1993_ATF_Commons.jpg\">http:\/\/commons.wikimedia.org\/wiki\/File:WTC_1993_ATF_Commons.jpg<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/about\/pdm\">Public Domain: No Known Copyright<\/a><\/em><\/li><\/ul><\/div>\n\t\t\t\t\t\t <\/div>\n\t\t\t\t\t <\/div>\n\t\t\t <\/section><hr class=\"before-footnotes clear\" \/><div class=\"footnotes\"><ol><li id=\"footnote-868-1\">Adapted from Facione, P. A. (1990). <em>Critical Thinking: A Statement of Expert Consensus for Purposes of Educational Assessment and Instruction, The Delphi Report (Executive Summary)<\/em>. Millbrae, CA: California Academic Press. <a href=\"#return-footnote-868-1\" class=\"return-footnote\" aria-label=\"Return to footnote 1\">&crarr;<\/a><\/li><li id=\"footnote-868-2\">Adapted from Facione, P. A. (1990). <a href=\"#return-footnote-868-2\" class=\"return-footnote\" aria-label=\"Return to footnote 2\">&crarr;<\/a><\/li><li id=\"footnote-868-3\">Aristotle. (1989). Prior Analytics (Trans. Robin Smith). Cambridge, MA: Hackett Publishing. <a href=\"#return-footnote-868-3\" class=\"return-footnote\" aria-label=\"Return to footnote 3\">&crarr;<\/a><\/li><\/ol><\/div>","protected":false},"author":277,"menu_order":5,"template":"","meta":{"_candela_citation":"{\"0\":{\"type\":\"cc\",\"description\":\"Chapter 6 Logic and the Role of Arguments\",\"author\":\"Terri Russ, J.D., Ph.D.\",\"organization\":\"Saint Mary\\'s College, Notre Dame, IN\",\"url\":\"http:\/\/publicspeakingproject.org\/psvirtualtext.html\",\"project\":\"The Public Speaking Project\",\"license\":\"cc-by-nc-nd\",\"license_terms\":\"\"},\"1\":{\"type\":\"cc\",\"description\":\"Martha Stewart nrkbeta\",\"author\":\"nrkbeta\",\"organization\":\"\",\"url\":\"http:\/\/commons.wikimedia.org\/wiki\/File:Martha_Stewart_nrkbeta.jpg\",\"project\":\"\",\"license\":\"cc-by-sa\",\"license_terms\":\"\"},\"2\":{\"type\":\"cc\",\"description\":\"Seat belt BX\",\"author\":\"M.Minderhoud\",\"organization\":\"\",\"url\":\"http:\/\/commons.wikimedia.org\/wiki\/File:Seat_belt_BX.jpg\",\"project\":\"\",\"license\":\"cc-by-sa\",\"license_terms\":\"\"},\"4\":{\"type\":\"pd\",\"description\":\"Sharia-Law-Billboard\",\"author\":\"Matt57\",\"organization\":\"\",\"url\":\"http:\/\/commons.wikimedia.org\/wiki\/File:Sharia-law-Billboard.jpg\",\"project\":\"\",\"license\":\"pd\",\"license_terms\":\"\"},\"5\":{\"type\":\"pd\",\"description\":\"Decorative toilet seat\",\"author\":\"Bartux\",\"organization\":\"\",\"url\":\"http:\/\/commons.wikimedia.org\/wiki\/File:Decorative_toilet_seat.jpg \",\"project\":\"\",\"license\":\"pd\",\"license_terms\":\"\"},\"6\":{\"type\":\"original\",\"description\":\"Image of man and woman arguing\",\"author\":\"mzacha\",\"organization\":\"MorgueFile\",\"url\":\"http:\/\/mrg.bz\/ynkIUa\",\"project\":\"\",\"license\":\"arr\",\"license_terms\":\"Free to remix, commercial use, no attribution required.   http:\/\/www.morguefile.com\/license\/morguefile\"},\"7\":{\"type\":\"pd\",\"description\":\"Image of 1993 World Trade Center bombing\",\"author\":\"\",\"organization\":\"Bureau of ATF 1993 Explosives Incident Report\",\"url\":\"http:\/\/commons.wikimedia.org\/wiki\/File:WTC_1993_ATF_Commons.jpg\",\"project\":\"\",\"license\":\"pd\",\"license_terms\":\"\"}}","CANDELA_OUTCOMES_GUID":"","pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-868","chapter","type-chapter","status-publish","hentry"],"part":133,"_links":{"self":[{"href":"https:\/\/courses.lumenlearning.com\/clinton-publicspeakingprinciples\/wp-json\/pressbooks\/v2\/chapters\/868","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/courses.lumenlearning.com\/clinton-publicspeakingprinciples\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/courses.lumenlearning.com\/clinton-publicspeakingprinciples\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/clinton-publicspeakingprinciples\/wp-json\/wp\/v2\/users\/277"}],"version-history":[{"count":13,"href":"https:\/\/courses.lumenlearning.com\/clinton-publicspeakingprinciples\/wp-json\/pressbooks\/v2\/chapters\/868\/revisions"}],"predecessor-version":[{"id":2157,"href":"https:\/\/courses.lumenlearning.com\/clinton-publicspeakingprinciples\/wp-json\/pressbooks\/v2\/chapters\/868\/revisions\/2157"}],"part":[{"href":"https:\/\/courses.lumenlearning.com\/clinton-publicspeakingprinciples\/wp-json\/pressbooks\/v2\/parts\/133"}],"metadata":[{"href":"https:\/\/courses.lumenlearning.com\/clinton-publicspeakingprinciples\/wp-json\/pressbooks\/v2\/chapters\/868\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/courses.lumenlearning.com\/clinton-publicspeakingprinciples\/wp-json\/wp\/v2\/media?parent=868"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/clinton-publicspeakingprinciples\/wp-json\/pressbooks\/v2\/chapter-type?post=868"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/clinton-publicspeakingprinciples\/wp-json\/wp\/v2\/contributor?post=868"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/clinton-publicspeakingprinciples\/wp-json\/wp\/v2\/license?post=868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}