McGahan J R, Williamson J D, Bonnette C, Pettway J, Payton M
Department of Psychology, Northeast Louisiana University, Monroe 71209-1110, USA.
Percept Mot Skills. 1998 Feb;86(1):99-110. doi: 10.1177/003151259808600101.
College students' intuitive judgments about covariations between height, weight, and body fat were assessed in three experiments using responses to a series of propositional statements as the dependent variable. In Exp. 1, judgments were rendered without explicit exposure to a prior database. In Exps. 2 and 3, however, databases were studied prior to these judgments. Remarkable consistencies in judgments of weight and body fat, height and weight as well as of height and body fat were obtained across experiments. At best, there was little evidence that the databases influenced the judged covariations among these variables. Whereas judgments about weight and body fat were unambiguous and consistent with the actual positive correlation between weight and body fat, judgments about height and weight as well as height and body fat were less clearcut. What was clear, however, was that these judgments were highly similar. Implications of these findings from previous research that suggest that presence of a perceived negative correlation between height and body fat are discussed.
在三项实验中,以对一系列命题陈述的回答作为因变量,评估了大学生对身高、体重和体脂之间协变关系的直观判断。在实验1中,判断是在没有明确接触先前数据库的情况下做出的。然而,在实验2和实验3中,在进行这些判断之前先研究了数据库。在各个实验中,对体重与体脂、身高与体重以及身高与体脂之间的判断都取得了显著的一致性。充其量,几乎没有证据表明数据库影响了这些变量之间判断出的协变关系。虽然关于体重和体脂的判断是明确的,并且与体重和体脂之间实际的正相关一致,但关于身高与体重以及身高与体脂的判断则不太明确。然而,清楚的是这些判断非常相似。讨论了这些发现对先前研究的启示,这些启示表明身高与体脂之间存在感知到的负相关。