{"id":290,"date":"2022-06-16T18:29:22","date_gmt":"2022-06-16T18:29:22","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/alphamodule\/?post_type=chapter&p=290"},"modified":"2022-06-16T19:14:18","modified_gmt":"2022-06-16T19:14:18","slug":"experimental-design-learn-it-4","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/alphamodule\/chapter\/experimental-design-learn-it-4\/","title":{"raw":"Experimental Design: Learn It 4","rendered":"Experimental Design: Learn It 4"},"content":{"raw":"

Replication<\/h3>\r\nThe final component of experimental design that we will explore is replication.\u00a0In addition to random assignment, replication<\/strong> helps ensure that the results of an experiment are truly caused by the change in the factor of interest and not by other hidden factors or natural variation in data. A good experiment always achieves replication by including large numbers of participants, but replication can also be achieved by repeating the entire experiment with new groups of participants. As you will learn in future lessons, certain statistical analyses can only be performed if the sample meets a minimum size requirement.\r\n\r\nSee the example below for a summary of replication, then answer Question 5.\r\n
\r\n

example<\/h3>\r\nFill in the blanks to complete these sentences.\r\n\r\nReplication helps ensure that the results of an experiment are truly caused by ________________________ and not by ____________________________. A good experiment can achieve replication by ________________________ or by _______________________________.\r\n\r\n[reveal-answer q=\"185602\"]Show Answer[\/reveal-answer]\r\n[hidden-answer a=\"185602\"]\r\n\r\nReplication helps ensure that the results of an experiment are truly caused by the change in the factor of interest<\/span> and not by other hidden factors or natural variation in data<\/span>. A good experiment can achieve replication by including large numbers of participants<\/span> or by\u00a0repeating the entire experiment with new groups of participants.<\/span>\r\n\r\n[\/hidden-answer]\r\n\r\n<\/div>\r\nNow you try it. Use the information you found above to help you answer Question 5.\r\n
\r\n

question 5<\/h3>\r\nWhich form of replication is demonstrated in the previous fish experiment?\r\n
    \r\n \t
  1. a) Many participants included in one experiment<\/li>\r\n \t
  2. b) The experiment repeated with different participants<\/li>\r\n<\/ol>\r\n[reveal-answer q=\"34644\"]Hint[\/reveal-answer]\r\n[hidden-answer a=\"34644\"]How many times did the ecologist collect data?[\/hidden-answer]\r\n\r\n<\/div>\r\n

    Looking ahead<\/h3>\r\nIn the upcoming activity, you will design an experiment\u00a0to study the health of coral reefs in our oceans. Use the National Ocean Service website provided here to learn some basic facts about coral, then record your responses to Question 6. Make sure to have your responses available during the activity.\r\n\r\nRead the article on this webpage (make sure to read the \"Did you know?\" section!) then answer Question 6.\r\n\r\nhttps:\/\/oceanservice.noaa.gov\/facts\/coral.html<\/a>.\r\n
    \r\n

    Question 6<\/h3>\r\nAnswer the following questions. Don't forget to have your answers available during the upcoming activity!\r\n\r\n \r\n\r\nPart A: Is coral a plant? An animal? Both?\r\n\r\n \r\n\r\nPart B: What are some factors that impact the health of coral reefs?\r\n\r\n \r\n\r\nPart C: What is coral bleaching?\r\n\r\n[reveal-answer q=\"635127\"]Hint[\/reveal-answer]\r\n[hidden-answer a=\"635127\"]Make sure to read the \u201cDid you know?\u201d section![\/hidden-answer]\r\n\r\n<\/div>","rendered":"

    Replication<\/h3>\n

    The final component of experimental design that we will explore is replication.\u00a0In addition to random assignment, replication<\/strong> helps ensure that the results of an experiment are truly caused by the change in the factor of interest and not by other hidden factors or natural variation in data. A good experiment always achieves replication by including large numbers of participants, but replication can also be achieved by repeating the entire experiment with new groups of participants. As you will learn in future lessons, certain statistical analyses can only be performed if the sample meets a minimum size requirement.<\/p>\n

    See the example below for a summary of replication, then answer Question 5.<\/p>\n

    \n

    example<\/h3>\n

    Fill in the blanks to complete these sentences.<\/p>\n

    Replication helps ensure that the results of an experiment are truly caused by ________________________ and not by ____________________________. A good experiment can achieve replication by ________________________ or by _______________________________.<\/p>\n

    Show Answer<\/span><\/p>\n
    \n

    Replication helps ensure that the results of an experiment are truly caused by the change in the factor of interest<\/span> and not by other hidden factors or natural variation in data<\/span>. A good experiment can achieve replication by including large numbers of participants<\/span> or by\u00a0repeating the entire experiment with new groups of participants.<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n

    Now you try it. Use the information you found above to help you answer Question 5.<\/p>\n

    \n

    question 5<\/h3>\n

    Which form of replication is demonstrated in the previous fish experiment?<\/p>\n

      \n
    1. a) Many participants included in one experiment<\/li>\n
    2. b) The experiment repeated with different participants<\/li>\n<\/ol>\n
      Hint<\/span><\/p>\n
      How many times did the ecologist collect data?<\/div>\n<\/div>\n<\/div>\n

      Looking ahead<\/h3>\n

      In the upcoming activity, you will design an experiment\u00a0to study the health of coral reefs in our oceans. Use the National Ocean Service website provided here to learn some basic facts about coral, then record your responses to Question 6. Make sure to have your responses available during the activity.<\/p>\n

      Read the article on this webpage (make sure to read the “Did you know?” section!) then answer Question 6.<\/p>\n

      https:\/\/oceanservice.noaa.gov\/facts\/coral.html<\/a>.<\/p>\n

      \n

      Question 6<\/h3>\n

      Answer the following questions. Don’t forget to have your answers available during the upcoming activity!<\/p>\n

       <\/p>\n

      Part A: Is coral a plant? An animal? Both?<\/p>\n

       <\/p>\n

      Part B: What are some factors that impact the health of coral reefs?<\/p>\n

       <\/p>\n

      Part C: What is coral bleaching?<\/p>\n

      Hint<\/span><\/p>\n
      Make sure to read the \u201cDid you know?\u201d section!<\/div>\n<\/div>\n<\/div>\n","protected":false},"author":17533,"menu_order":20,"template":"","meta":{"_candela_citation":"[]","CANDELA_OUTCOMES_GUID":"","pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-290","chapter","type-chapter","status-publish","hentry"],"part":158,"_links":{"self":[{"href":"https:\/\/courses.lumenlearning.com\/alphamodule\/wp-json\/pressbooks\/v2\/chapters\/290","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/courses.lumenlearning.com\/alphamodule\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/courses.lumenlearning.com\/alphamodule\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/alphamodule\/wp-json\/wp\/v2\/users\/17533"}],"version-history":[{"count":1,"href":"https:\/\/courses.lumenlearning.com\/alphamodule\/wp-json\/pressbooks\/v2\/chapters\/290\/revisions"}],"predecessor-version":[{"id":296,"href":"https:\/\/courses.lumenlearning.com\/alphamodule\/wp-json\/pressbooks\/v2\/chapters\/290\/revisions\/296"}],"part":[{"href":"https:\/\/courses.lumenlearning.com\/alphamodule\/wp-json\/pressbooks\/v2\/parts\/158"}],"metadata":[{"href":"https:\/\/courses.lumenlearning.com\/alphamodule\/wp-json\/pressbooks\/v2\/chapters\/290\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/courses.lumenlearning.com\/alphamodule\/wp-json\/wp\/v2\/media?parent=290"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/alphamodule\/wp-json\/pressbooks\/v2\/chapter-type?post=290"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/alphamodule\/wp-json\/wp\/v2\/contributor?post=290"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/alphamodule\/wp-json\/wp\/v2\/license?post=290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}