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. 2005 Aug 3;102(39):13724–13731. doi: 10.1073/pnas.0504869102

Table 1. Mean ratings of items on the Food Preferences Questionnaire (on a 1–8 scale) and the Party Behavior Questionnaire (on a 1–8 scale), split by whether participants believed the relevant feedback (believers), did not believe it (nonbelievers), or were not exposed to it (controls) in Experiment 1.

Experimental group Prefeedback Prefer Postfeedback Prefer Prefeedback Party Postfeedback Party Overall avoidance
Strawberry ice cream
    Believers (n = 7) 5.17 4.33 4.86 4.29 0.71
    Nonbelievers 6.28 5.90 6.32 5.77 0.42
    Controls 6.24 5.97 5.60 5.46 0.21
Chocolate chip cookie
    Believers (n = 4) 7.50 7.00 7.00 7.25 0.13
    Nonbelievers 6.64 6.14 5.93 5.93 0.25
    Controls 6.90 6.67 6.07 5.77 0.27

Overall avoidance is calculated as the average difference between pre- and postfeedback on the Food Preferences Questionnaire and Party Behavior Questionnaire. Positive avoidance values denote more avoidance. Prefer, Food Preferences Questionnaire; Party, Party Behavior Questionnaire.