Dimensionality of three versions of the Eating Disorder Inventory in adolescent girls.
OBJECTIVE
To analyze the dimensionality of three versions of the Eating Disorder Inventory (EDI) in adolescent girls.


METHODS
The sample comprised 738 participants. The Spanish adaptation of the EDI-2 was used. The EDI-2 contains the 64 items of EDI and has the same items as EDI-3. The dimensional structures hypothesized by Garner for the three EDI versions were assessed via a series of Confirmatory Factor Analyses (CFAs).


RESULTS
The CFA did not confirm Garner's proposed structure in any of the three versions. Consequently it was decided to perform Exploratory Factor Analyses (EFA) of the EDI-2 and the EDI-3 to try to identify the underlying structure. The best theoretical and empirical fit was provided by a 7-factor structure.


CONCLUSIONS
This article presents a shortened version of the EDI-2 which may prove more suitable for use with adolescent girls in the general population than the original questionnaire. Certain practical suggestions for optimizing the use of the different versions of the EDI are also presented.
García-Grau
Eugeni
E
Faculty of Psychology, Department of Personality, Assessment and Psychological Treatment, University of Barcelona, Barcelona, Spain.
Fusté
Adela
A
Mas
Natàlia
N
Gómez
Juana
J
Bados
Arturo
A
Saldaña
Carmina
C
D000293:Adolescent; D016009:Chi-Square Distribution; D005163:Factor Analysis, Statistical; D001068:Feeding and Eating Disorders / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D011795:Surveys and Questionnaires