Psychologists working for food and beverage companies have always played a critical role in product development. In one experiment conducted by a consumer psychologist, preference for two types of milk chocolate bars was mea­sured. The company had noticed that in one marketplace its brand of milk chocolate bar performed significantly worse than its leading competitor's milk chocolate bar. These data were particularly puzzling as on a nationwide basis its milk chocolate bar performed sig­nificantly better than its competitor's milk chocolate bar. The researchers were concerned that some local condition may have contributed to the rejection of their milk chocolate bar, so they set out to test this hypoth­esis. The experimental design was a repeated measure design in which each subject tasted two milk chocolate bars. One milk chocolate bar was marked Q (the competitor's brand) and the other was marked M (their brand). A random sample of citizens between the ages of 15 and 82 were asked to participate in the experiment. All subjects tasted brand Q and then brand M, and then gave their prefer­ence. Much to the surprise of the experimenters, the subjects reported an overwhelming preference for brand M. The authors concluded that the sample preferred their company's brand and that advertising must have contributed to the consumption of the competitor's brand in that area. Therefore, they suggested a multimillion-dollar advertising campaign to rectify the situation.  Indicate what you see as other possible explanations for the results of their follow-up study.  How might you design a study to determine if this "other explanation" is really the reason for the their preference?  Can you think of any other possible examples used in marketing where an obvious confound was present?

Ciccarelli: Psychology_5 (5th Edition)
5th Edition
ISBN:9780134477961
Author:Saundra K. Ciccarelli, J. Noland White
Publisher:Saundra K. Ciccarelli, J. Noland White
Chapter1: The Science Of Psychology
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Psychologists working for food and beverage companies have always played a critical role in product development. In one experiment conducted by a consumer psychologist, preference for two types of milk chocolate bars was mea­sured. The company had noticed that in one marketplace its brand of milk chocolate bar performed significantly worse than its leading competitor's milk chocolate bar. These data were particularly puzzling as on a nationwide basis its milk chocolate bar performed sig­nificantly better than its competitor's milk chocolate bar.

The researchers were concerned that some local condition may have contributed to the rejection of their milk chocolate bar, so they set out to test this hypoth­esis. The experimental design was a repeated measure design in which each subject tasted two milk chocolate bars. One milk chocolate bar was marked Q (the competitor's brand) and the other was marked M (their brand). A random sample of citizens between the ages of 15 and 82 were asked to participate in the experiment. All subjects tasted brand Q and then brand M, and then gave their prefer­ence. Much to the surprise of the experimenters, the subjects reported an overwhelming preference for brand M. The authors concluded that the sample preferred their company's brand and that advertising must have contributed to the consumption of the competitor's brand in that area. Therefore, they suggested a multimillion-dollar advertising campaign to rectify the situation.

  •  Indicate what you see as other possible explanations for the results of their follow-up study. 
  • How might you design a study to determine if this "other explanation" is really the reason for the their preference?
  •  Can you think of any other possible examples used in marketing where an obvious confound was present?
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