Construct Validity Of The Eating Assessment Tool (EAT-10)

ASU Author/Contributor (non-ASU co-authors, if there are any, appear on document)
R. Jordan Hazelwood, Assistant Professor, Speech Language Pathology (Creator)
Institution
Appalachian State University (ASU )
Web Site: https://library.appstate.edu/

Abstract: Purpose: We aimed to evaluate the construct validity of the Eating Assessment Tool (EAT-10) by determining its dimensionality, rating scale integrity, item-person match, precision and relationship with the degree of airway invasion and functional oral intake. Methods: We conducted a retrospective analysis of patients’ EAT-10 scores. We used the Rasch rating scale model. We investigated correlations between the EAT-10 and scores on the Penetration-Aspiration Scale (PAS) and Functional Oral Intake Scale (FOIS). Results: The median score of the EAT-10 from 127 patients was 16 of 40 (range 0–40). Confirmatory factor analysis supported unidimensionality. The 5-point rating scale categories met published criteria. Two items misfit the Rasch model and two other items displayed differential item functioning. Rasch person reliability was 0.79. Our patient cohort was divided into three person-strata. Correlations between the EAT-10 and the PAS and FOIS were weak to moderate in strength (respectively: r ¼ 0.26, p ¼ 0.0036; r ¼ -0.27, p ¼ 0.0027). Conclusions: Our analyses identified deficits in the construct validity of the EAT-10 suggestive of a need to improve the EAT-10 to support its frequent use in clinical practice and research.

Additional Information

Publication
Janina Wilmskoetter, Heather Bonilha, Ickpyo Hong, R. Jordan Hazelwood, Bonnie Martin-Harris & Craig Velozo (2017): Construct validity of the Eating Assessment Tool (EAT-10), Disability and Rehabilitation, DOI: 10.1080/09638288.2017.1398787. Version of record available at: http://dx.doi.org/10.1080/09638288.2017.1398787
Language: English
Date: 2017
Keywords
Rasch model, deglutition disorder, outcome assessment (health care), surveys and questionnaires, reliability, validity

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