Volume 38, Issue 1 pp. 65-72
Regular Article

Illusory correlation for body type and happiness: Covariation bias and its relationship to eating disorder symptoms

Richard J. Viken PhD

Corresponding Author

Richard J. Viken PhD

of Psychology, Indiana University, Bloomington, Indiana

Department of Psychology, Indiana University, 1101 East 10th Street. Bloomington, IN 47405Search for more papers by this author
Teresa A. Treat PhD

Teresa A. Treat PhD

Department of Psychology, Yale University, New Haven, Connecticut

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Staci L. Bloom BA

Staci L. Bloom BA

of Psychology, Indiana University, Bloomington, Indiana

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Richard M. McFall PhD

Richard M. McFall PhD

of Psychology, Indiana University, Bloomington, Indiana

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First published: 30 June 2005
Citations: 5

Abstract

Objective

The current study investigates covariation bias (illusory correlation) in the perceived association between happiness and body type, as well as the association between covariation bias and eating disorder symptoms.

Method

Undergraduate women (n = 186) rated pictures of women on a variety of attributes, including happiness, degree of overweight, and attractiveness. Later, they were asked to judge the level of covariation between these attributes that was present in the stimuli that they had rated. Participants also completed the Eating Disorder Examination-Self-Report Questionnaire (EDE-Q).

Results

Participants reported that there was a negative association between weight and happiness in the stimuli that they had rated, even though the true correlation in the data was zero. This covariation bias was stronger among participants with higher levels of eating disorder symptoms.

Discussion

The results suggest a cognitive bias that may play a role in maintaining and enhancing concerns about shape and weight in symptomatic women. © 2005 by Wiley Periodicals, Inc.

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