![]() ![]() Several measures are available for the assessment of ED symptomatology, but researchers or clinicians may falsely assume that these tools retain adequate psychometric properties such as internal consistency across all circumstances. and a substantial rise in the point prevalence of ED behaviors in Australia. 3% and 1% respectively when using strict diagnostic criteria, disturbances in eating behavior and body image affect large numbers of individuals and recent evidence suggests increases in the annual incidence of EDs in the U.K. Overall, this study highlights the importance of assessing and reporting internal consistency during every test administration because reliability is affected by characteristics of the participants being examined.Īlthough estimates for anorexia nervosa and bulimia nervosa approximate. However, there was a tendency for mean score reliability to be higher in the adult (vs. Score reliability information for the EAT was primarily reported for nonclinical samples, making it difficult to characterize the effect of type of sample on these measures. ![]() Whereas some EDI subscales exhibited higher score reliability in clinical eating disorder samples than in nonclinical samples, other subscales did not exhibit these differences. 80) suggested variability in estimated internal consistency. ![]() Mean Cronbach’s alphas for the EDI (total score = .91 subscales = .75 to. ![]() Score reliability estimates were included in 26.15% of studies using the EDI and 36.28% of studies using the EAT. Published studies that used these measures were coded based on their reporting of reliability information and additional study characteristics that might influence score reliability. The present study followed reliability generalization procedures to determine the mean score reliability of the Eating Disorder Inventory and its most commonly employed subscales (Drive for Thinness, Bulimia, and Body Dissatisfaction) and the Eating Attitudes Test as a way to better identify those characteristics that might impact score reliability. Although score reliability is a sample-dependent characteristic, researchers often only report reliability estimates from previous studies as justification for employing particular questionnaires in their research. ![]()
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