Hundleby J D, Bourgouin N C
Department of Psychology, University of Guelph, Ontario, Canada.
Int J Eat Disord. 1993 Jan;13(1):85-92. doi: 10.1002/1098-108x(199301)13:1<85::aid-eat2260130111>3.0.co;2-j.
An aspect of the considerable research on the association between eating disorders and discrepancies in body image estimation is the extent, if at all, that such discrepancies could be due to a more general tendency to show a positive or negative bias in estimation of the size of objects. One hundred female subjects, without known eating disorder, estimated the width of their own bodies (head, shoulders, waist, and hips), of another person's body (waist and hips), of four commercial packages, and of a cylinder. Errors in estimation, computed as algebraic differences from the true value, were computed, and all error means were found to be positive. Correlations between the error scores were all positive. Factor analysis of the correlations between the 11 error scores indicated a substantial general factor plus a bipolar factor, or alternatively two positively correlated factors referring to human body or physical measures. Results were interpreted as supporting the notion of a broad general tendency to enhance or diminish estimations of the width of familiar objects including estimations of the width of own body parts. The relevance of this finding to eating disorders was discussed.
关于饮食失调与身体形象估计差异之间关联的大量研究的一个方面是，这种差异在多大程度上（如果有的话）可能归因于在估计物体大小时表现出正偏差或负偏差的更普遍倾向。一百名无已知饮食失调的女性受试者估计了她们自己身体（头部、肩膀、腰部和臀部）、另一个人的身体（腰部和臀部）、四个商业包装以及一个圆柱体的宽度。计算估计误差，即与真实值的代数差，发现所有误差均值均为正值。误差分数之间的相关性均为正。对11个误差分数之间的相关性进行因子分析，结果显示一个显著的一般因子加上一个两极因子，或者另外两个指人体或物理测量的正相关因子。结果被解释为支持这样一种观点，即存在一种广泛的普遍倾向，会增强或降低对熟悉物体宽度的估计，包括对自身身体部位宽度的估计。讨论了这一发现与饮食失调的相关性。
