Blackman S L, Singer R D, Mertz T
J Psychol. 1983 May;114(1st Half):115-22. doi: 10.1080/00223980.1983.9915404.
Four hundred and sixteen male and 233 female subjects were observed in a university cafeteria at lunch time. They were categorized according to five perceived weight groups with category one being underweight and category five being overweight. The number of calories in the food bought for lunch by each subject was calculated and recorded. Males bought food containing more calories than females but for males the amount of calories did not differ by perceived weight category. Females purchased food with fewer calories than males but the heavier females bought food with higher caloric content.
午餐时间，在一所大学的自助餐厅观察了416名男性和233名女性受试者。他们根据五个自认为的体重组进行分类，第一类为体重过轻，第五类为超重。计算并记录了每个受试者购买的午餐食物中的卡路里数量。男性购买的食物所含卡路里比女性多，但对于男性来说，卡路里摄入量在不同的自认为体重类别之间没有差异。女性购买的食物卡路里比男性少，但体重较重的女性购买的食物热量更高。
