In:
Assessment, SAGE Publications, Vol. 15, No. 3 ( 2008-09), p. 343-350
Abstract:
Despite favorable psychometric properties, the Generalized Anxiety Disorder Questionnaire for the Diagnostic and Statistical Manual of Mental Disorders (4th ed.) (GAD-Q-IV) does not have a known factor structure, which calls into question use of its original weighted scoring system (usually referred to as the dimensional score). Analyses appropriate to categorical item responses in a large sample of undergraduates were used to establish the scale's factor structure. Analyses indicated that a one-factor structure resulted in good fit. A scoring method based on this one-factor structure was compared with a variety of alternative scoring procedures, and it was found that a method based on factor scores did relatively well but that the previously suggested dimensional score failed to perform better than a simple sum of items. Results support the general unity of the measure but raise doubts regarding its scoring and response options.
Type of Medium:
Online Resource
ISSN:
1073-1911
,
1552-3489
DOI:
10.1177/1073191107312547
Language:
English
Publisher:
SAGE Publications
Publication Date:
2008
detail.hit.zdb_id:
2083220-5
SSG:
5,2
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