NDLI: Measuring eating disorder attitudes and behaviors: a reliability generalization study

Content Provider	Springer Nature : BioMed Central
Author	Gleaves, David H Pearson, Crystal A Ambwani, Suman Morey, Leslie C
Abstract	Background 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. 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. Methods Published studies that used these measures were coded based on their reporting of reliability information and additional study characteristics that might influence score reliability. Results Score reliability estimates were included in 26.15% of studies using the EDI and 36.28% of studies using the EAT. Mean Cronbach’s alphas for the EDI (total score = .91; subscales = .75 to .89), EAT-40 (total score = .81) and EAT-26 (total score = .86; subscales = .56 to .80) suggested variability in estimated internal consistency. Whereas some EDI subscales exhibited higher score reliability in clinical eating disorder samples than in nonclinical samples, other subscales did not exhibit these differences. 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. However, there was a tendency for mean score reliability to be higher in the adult (vs. adolescent) samples and in female (vs. male) samples. Conclusions 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.
Related Links	https://jeatdisord.biomedcentral.com/counter/pdf/10.1186/2050-2974-2-6.pdf
Ending Page	12
Page Count	12
Starting Page	1
File Format	HTM / HTML
ISSN	20502974
DOI	10.1186/2050-2974-2-6
Journal	Journal of Eating Disorders
Issue Number	1
Volume Number	2
Language	English
Publisher	BioMed Central
Publisher Date	2014-03-10
Access Restriction	Open
Subject Keyword	Psychology Health Promotion and Disease Prevention Psychiatry Clinical Psychology Eating disorders Assessment Psychometric properties Reliability generalization Eating disorder inventory Eating attitudes test
Content Type	Text
Resource Type	Article
Subject	Nutrition and Dietetics Behavioral Neuroscience Psychiatry and Mental Health
Journal Impact Factor	3.5/2023
5-Year Journal Impact Factor	4/2023

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