One group lists the items in their room and the other is asked to talk about their favorite TV show. It seems to me that the first requires more effort and is less interesting. Maybe the study is measuring fatigue levels instead of willpower levels. Maybe the second group should be asked to list all the major and minor characters from their favorite TV show.
To me willpower is forcing yourself to do what you'd rather not do. Put the two groups on a diet and show me if there is any difference.
Since children will watch the same DVD 90 billion times, why are they not an unlimited font of self-control?
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