Objective: Assess the association between reporting bias of dietary energy intake and the behavioral and psychological pro®les in women. Design: At baseline a series of questionnaires were administered to 37 women, (the Marlowe-Crowne Social Desirability Scale, Weinberger Adjustment Inventory (WAI), the Eating Disorder Inventory (EDI), the Restraint Scale and Sorensen-Stunkard's silhouettes). Subjects received training on how to record dietary records. Subjects recorded three days of dietary records to measure energy intake (EI) during a study to determine total energy expenditure (TEE) using doubly labeled water. Reporting accuracy (RA EIaTEE 6 100) was determined for each subject. Statistical analysis of the data used a mixed effects model accounting for within subject variability to determine if the psychological scores were associated with reporting accuracy. Setting and subject: Women were recruited with local advertisements in Tucson, Arizona. The women had a mean ( AE 1 s.d.) age of 43.6 AE 9.3 yrs, body mass index (BMI) of 28.7 AE 8.5 kgam 2 and total body fat (%TBF) of 31.9 AE 7.3%. Results: Age and %TBF were signi®cantly and inversely associated with RA. Furthermore, Social Desirability was negatively associated with RA. Body dissatisfaction and associating a smaller body size than one's own as being more healthy were also associated with a lower RA. Conclusions: These results suggest that Social Desirability and self image of body shape are associated with RA. Modi®cations in subject training may reduce the effect of these factors on RA. Sponsorship: This project was supported by a grant from the National Institute of Diabetes, Digestive and