Journal
JOURNAL OF ANXIETY DISORDERS
Volume 31, Issue -, Pages 38-42Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.janxdis.2015.01.005
Keywords
Generalized anxiety disorder; GAD-7; Culture; Ethnicity; Confirmatory factor analysis; Differential item functioning
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Funding
- Canadian Institutes of Health Research (CIHR) [FRN: 131152]
- CIHR Doctoral Award [FRN: 113434]
- National Institutes of Mental Health [1 F31 MH099922-01A1]
- University of Regina President's Chair for Academic Excellence in Adult Mental Health Research
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The GAD-7 is a popular measure of generalized anxiety disorder (GAD) symptoms that has been used across many cultural groups. Existing evidence demonstrates that the prevalence of GAD varies across self-identified ethnic/cultural groups, a phenomenon that some researchers attribute to cross-cultural measurement error rather than to actual differences in rates of GAD. Nonetheless, the effect of culture on factor structure and response patterns to the GAD-7 have not been examined and could result over-or under-estimated GAD-7 scores across different cultural groups. The current investigation assessed the factor structure of the GAD-7 in White/Caucasian, Hispanic, and Black/African American undergraduates and tested for cultural-based biases. A modified one-factor model exhibited good fit across subsamples. Results revealed that Black/African American participants with high GAD symptoms scored lower on the GAD-7 than other participants with similar GAD symptoms. Results highlight the need for culturally sensitive GAD screening tools. (C) 2015 Elsevier Ltd. All rights reserved.
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