Category: Eating Disorders
Objective: Rates of body dissatisfaction and eating disorders have increased in racial and ethnic minority groups, and yet the validity of various commonly-used eating disorder assessment instruments has not been established in these populations. One way to establish validity is to examine whether or not the same constructs are being measured across groups, also referred to as measurement invariance. The primary goal of this study was to test the measurement invariance of one such measure, the Eating Disorder Examination Questionnaire (EDE-Q) across a sample of non-Hispanic White and Hispanic American undergraduate women.
Method: As part of a larger body image and eating disorder study, 504 female undergraduates were recruited from a large university in the Southwestern United States. Participants had a mean age of 20.22 years and a mean BMI of 23.87. Approximately, 55% of the participants identified as being of Hispanic, Latina, or Spanish origin.
Results: Confirmatory factor analyses (CFAs) of six previously published EDE-Q factor structures were tested. Only a modified 7-item 3 factor structure of the EDE-Q was an acceptable fit of the data in both non-Hispanic White [χ2 (11) = 26.52, p = 0.0054; CFI = 0.99; TLI = 0.98; RMSEA = 0.08 (90% CI = 0.04-0.12); SRMR = 0.02] and Hispanic American college women [χ2 (11) =45.09 , p < .001; CFI = 0.97, TLI = 0.95; RMSEA = 0.11 (90% CI = 0.08-0.14); SRMR = 0.03]. Tests of measurement invariance indicated that the measure achieved only configural invariance, indicating that the EDE-Q is not invariant across groups.
Discussion: Given the lack of invariance across non-Hispanic White and Hispanic American participants, researchers should be cautions when using the EDE-Q to make comparisons across these groups. It is important to further examine the construct of eating disorders in Hispanic American populations and to alter eating disorder assessment measures accordingly.