{"id":7473,"date":"2022-04-18T19:56:52","date_gmt":"2022-04-18T19:56:52","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/waymaker-psychology\/?post_type=chapter&p=7473"},"modified":"2023-05-25T18:15:53","modified_gmt":"2023-05-25T18:15:53","slug":"assignment-perception-and-food","status":"web-only","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/waymaker-psychology\/chapter\/assignment-perception-and-food\/","title":{"raw":"Assignment: Perception and Food","rendered":"Assignment: Perception and Food"},"content":{"raw":"

Applications of the Delbouef Illusion<\/h2>\r\nWhich circle below looks bigger?\r\n\"Two<\/a>\r\nHaving already learned about the Ebbinghaus illusion, you were probably right in guessing that the circle with the ring around it appears larger than the non-surrounded circle. This is an example of the Delboeuf illusion, first identified by Belgian philosopher and mathematician Joseph Delbouef in 1887 or 1888. Modern psychologists have tested this illusion in various experiments, including one to determine if eyeshadow makes eyes look bigger<\/a> (it does), and others to determine if the quantity of food on a plate looks larger if the plate is smaller.\r\nStudies by Koert Van Ittersum and Brian Wansink[footnote]Research by Brian Wansink has been called into question following some significant errors and deceptive results presented in his publications. Since 2017, 17 of his papers were retracted and 15 were revised after it came to light that some of the data had been manipulated. [\/footnote] at the Cornell Food and Brand Lab have studied the effect of the Delbouef illusion on eating and serving behavior. In several different experiments, they measured if people would take more or less than a typical serving size depending on the size of their plate, the color of the plate, the color of the tablecloth, and how much they knew about the Delboeuf illusion.\r\n

Assignment:<\/h2>\r\nYou are in charge of providing meals at the upcoming family reunion and are worried about not having enough linguini alfredo (a white pasta) to serve the entire crew. You want to ensure that no one takes too much food.\r\n\r\nSTEP 1<\/strong>: Read through the study, \u201cPlate Size and Color Suggestibility: The Delboeuf illusion\u2019s bias on eating and serving behavior\u201d by Koert Van Ittersum and Brian Wansink. You can find the full article by searching online or using your library's database.\r\n\r\nSTEP 2<\/strong>: Write a plan for yourself with some advice on what size plates you should use, what color they should be, and what color tablecloths you should buy. Read through the study, then explain in a few paragraphs (between 200-400 words) how you can utilize the Delboeuf illusion to minimize costs at the reunion. Cite specific pieces of evidence (at least four quantitative examples) from the research.\r\n

Sample Grading Rubric<\/h2>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Criteria<\/strong><\/th>\r\nProficient<\/strong><\/th>\r\nDeveloping<\/strong><\/th>\r\nNot Evident<\/strong><\/th>\r\nPoints<\/strong><\/th>\r\n<\/tr>\r\n
Presents a coherent summary of between 200-400 words<\/td>\r\nClearly writes a few explanatory paragraphs that demonstrate an understanding of the Delboeuf illusion<\/td>\r\nWriting contains many errors or does not demonstrate an understanding of the Delboeuf illusion<\/td>\r\nWriting is unclear and\/or does not demonstrate an understanding of the Delboeuf illusion<\/td>\r\n__\/5<\/td>\r\n<\/tr>\r\n
Recommendations<\/td>\r\nRecommends the correct plate size, color of plate, and color of tablecloths according to the study<\/td>\r\nMakes incorrect recommendations for either the correct plate size, color, or tablecloths<\/td>\r\nDoes not make, or incorrectly makes recommendations for the plate size, color, and tablecloths<\/td>\r\n__\/10<\/td>\r\n<\/tr>\r\n
Evidence from research<\/td>\r\nIncludes at least four quantitative examples from the research<\/td>\r\nIncludes less than four quantitative examples from the research<\/td>\r\nDoes not include quantitative examples from the research<\/td>\r\n__\/5<\/td>\r\n<\/tr>\r\n
Total:<\/strong><\/th>\r\n__\/20<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>","rendered":"

Applications of the Delbouef Illusion<\/h2>\n

Which circle below looks bigger?
\n\"Two<\/a>
\nHaving already learned about the Ebbinghaus illusion, you were probably right in guessing that the circle with the ring around it appears larger than the non-surrounded circle. This is an example of the Delboeuf illusion, first identified by Belgian philosopher and mathematician Joseph Delbouef in 1887 or 1888. Modern psychologists have tested this illusion in various experiments, including one to determine if eyeshadow makes eyes look bigger<\/a> (it does), and others to determine if the quantity of food on a plate looks larger if the plate is smaller.
\nStudies by Koert Van Ittersum and Brian Wansink[1]<\/sup><\/a> at the Cornell Food and Brand Lab have studied the effect of the Delbouef illusion on eating and serving behavior. In several different experiments, they measured if people would take more or less than a typical serving size depending on the size of their plate, the color of the plate, the color of the tablecloth, and how much they knew about the Delboeuf illusion.<\/p>\n

Assignment:<\/h2>\n

You are in charge of providing meals at the upcoming family reunion and are worried about not having enough linguini alfredo (a white pasta) to serve the entire crew. You want to ensure that no one takes too much food.<\/p>\n

STEP 1<\/strong>: Read through the study, \u201cPlate Size and Color Suggestibility: The Delboeuf illusion\u2019s bias on eating and serving behavior\u201d by Koert Van Ittersum and Brian Wansink. You can find the full article by searching online or using your library’s database.<\/p>\n

STEP 2<\/strong>: Write a plan for yourself with some advice on what size plates you should use, what color they should be, and what color tablecloths you should buy. Read through the study, then explain in a few paragraphs (between 200-400 words) how you can utilize the Delboeuf illusion to minimize costs at the reunion. Cite specific pieces of evidence (at least four quantitative examples) from the research.<\/p>\n

Sample Grading Rubric<\/h2>\n\n\n\n\n\n\n\n
Criteria<\/strong><\/th>\nProficient<\/strong><\/th>\nDeveloping<\/strong><\/th>\nNot Evident<\/strong><\/th>\nPoints<\/strong><\/th>\n<\/tr>\n
Presents a coherent summary of between 200-400 words<\/td>\nClearly writes a few explanatory paragraphs that demonstrate an understanding of the Delboeuf illusion<\/td>\nWriting contains many errors or does not demonstrate an understanding of the Delboeuf illusion<\/td>\nWriting is unclear and\/or does not demonstrate an understanding of the Delboeuf illusion<\/td>\n__\/5<\/td>\n<\/tr>\n
Recommendations<\/td>\nRecommends the correct plate size, color of plate, and color of tablecloths according to the study<\/td>\nMakes incorrect recommendations for either the correct plate size, color, or tablecloths<\/td>\nDoes not make, or incorrectly makes recommendations for the plate size, color, and tablecloths<\/td>\n__\/10<\/td>\n<\/tr>\n
Evidence from research<\/td>\nIncludes at least four quantitative examples from the research<\/td>\nIncludes less than four quantitative examples from the research<\/td>\nDoes not include quantitative examples from the research<\/td>\n__\/5<\/td>\n<\/tr>\n
Total:<\/strong><\/th>\n__\/20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\t\t\t
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Candela Citations<\/h3>\n\t\t\t\t\t
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