Factor structure of the Eating Disorder Inventory-C.
OBJECTIVE
The Eating Disorder Inventory-C (EDI-C) is a multidimensional self-report questionnaire for children and adolescents used to characterize differences in the symptoms of eating disorders. It is based on the EDI-2 questionnaire, which is designed for adults. Although the psychometric properties of the EDI and EDI-2 have been well characterized, no studies exist on the EDI-C. Thus, we aimed to establish the factor structure of the EDI-C questionnaire among children.


METHODS
A nonclinical sample of 898 children aged 9-16 years completed the EDI-C questionnaire at school.


RESULTS
Instead of the original 11-factor structure of the EDI-2, 5 factors with high reliability were extracted when 27 items with low communality were removed from analysis.


CONCLUSIONS
When the EDI-C is used, the reliability of the original 11 factors may be low. A modified subscale structure with five factors is proposed.
Eklund
Katja
K
Department of Child Psychiatry, University of Helsinki, Helsinki, Finland. katja.eklund@gradek.fi
Paavonen
E Juulia
EJ
Almqvist
Fredrik
F
D000293:Adolescent; D002648:Child; D005163:Factor Analysis, Statistical; D001068:Feeding and Eating Disorders / Q000175:diagnosis*; D005260:Female; D005387:Finland; D006801:Humans; D008297:Male; D010555:Personality Inventory; D011594:Psychometrics