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Factor analytic support for the EDE-Q7 among American Indian/Alaska Native undergraduate women

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Abstract

Objective

American Indian/Alaska Native (AI/AN) people have historically been excluded from eating disorder research. Consequently, not much is known about the validity of eating disorder assessment measures in this group. The purpose of the current study was to examine the factor structure of a short measure for eating pathology, the seven-item Eating Disorder Examination Questionnaire (EDE-Q7), in AI/AN undergraduate women. Exploratory analyses examined the measurement invariance of the EDE-Q7 across AI/AN, White, and Latinx undergraduates.

Methods

A sample of 150 AI/AN undergraduate women completed the full EDE-Q (28 items) as part of two larger studies. The seven items comprising the EDE-Q7 were selected from the full measure to test the factor structure. Random samples of White and Latinx women of equal sample size were chosen from the larger studies to test measurement invariance.

Results

Confirmatory factor analyses found support for the EDE-Q7 factor structure in AI/AN undergraduate women, and scores were strongly positively correlated with the original EDE-Q global scale and disordered eating behaviors. Exploratory analyses found support for the measurement invariance of the EDE-Q7 across AI/AN, White, and Latinx women. One-way ANOVAs showed no significant racial and ethnic differences on the EDE-Q7.

Discussion

The current study found psychometric support for the EDE-Q7 in AI/AN undergraduate women and provided preliminary evidence that the EDE-Q7 can be meaningfully compared across AI/AN, White, and Latinx undergraduate women. Further research should continue to investigate the EDE-Q7 and other eating disorder measures in AI/AN and other historically excluded groups.

Level of evidence

V, cross-sectional descriptive study.

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Data availability

The data are available from the corresponding author upon request.

Code availability

Not applicable.

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Funding

No funding was received for conducting this study.

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Authors and Affiliations

  1. Department of Psychology, University of New Mexico, MSC03 2220, Albuquerque, NM, 87131, USA

    Kelsey N. Serier, Kirsten P. Peterson, Hayley VanderJagt, Riley M. Sebastian, Chloe R. Mullins, Jacqueline Medici, Jamie M. Smith & Jane Ellen Smith

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  2. Kirsten P. Peterson
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  3. Hayley VanderJagt
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Correspondence to Jane Ellen Smith.

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The approval was granted by the University of New Mexico Institutional Review Board.

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Informed consent was obtained from all individual participants included in the study.

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Participants consented to publication of their deidentified data.

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All procedures performed in this study were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

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Serier, K.N., Peterson, K.P., VanderJagt, H. et al. Factor analytic support for the EDE-Q7 among American Indian/Alaska Native undergraduate women. Eat Weight Disord 27, 2011–2018 (2022). https://doi.org/10.1007/s40519-021-01335-w

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