Examining the construct validity of the eating disorder inventory

Dorothy L. Espelage, Suzanne E. Mazzeo, Steven H. Aggen, Alexandra L. Quittner, Roberta Sherman, Ron Thompson

Research output: Contribution to journalArticle

56 Scopus citations

Abstract

The construct validity of the Eating Disorder Inventory (EDI) was examined in 3 samples. An archival clinic sample (n = 318) of women completed the EDI, a structured interview, and the Millon Clinical Multiaxial Inventory - II (MCMI-II). Confirmatory factor analyses (CFAs) indicated that neither null nor 1-factor models of the EDI fit item-level or item-parcel data. The proposed 8-factor model did not fit at the item level but did fit item-parcel data. Reliability estimates of the 8 scales ranged from .82 to .93, and low-to-moderate interscale correlations among the eating and weight-related scales provided partial support for convergent validity. EDI personality scales showed moderate interscale correlations and were associated with MCMI-II scales. A final CFA of the EDI scales supported a 2-factor model (Eating and Weight, Personality) of the 8 EDI scales. Strong associations between depression and several EDI scale scores were found in a treatment study sample (n = 50). The archival clinic sample scored significantly higher on the 8 EDI scales than the nonpatient college comparison sample (n = 487).

Original languageEnglish (US)
Pages (from-to)71-80
Number of pages10
JournalPsychological Assessment
Volume15
Issue number1
DOIs
StatePublished - Mar 1 2003

ASJC Scopus subject areas

  • Clinical Psychology
  • Psychiatry and Mental health

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    Espelage, D. L., Mazzeo, S. E., Aggen, S. H., Quittner, A. L., Sherman, R., & Thompson, R. (2003). Examining the construct validity of the eating disorder inventory. Psychological Assessment, 15(1), 71-80. https://doi.org/10.1037/1040-3590.15.1.71