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Psychometric Properties of the Generalized Anxiety Disorder Scale-7 (GAD-7) in Outpatients with Anxiety and Mood Disorders
- Source :
- Journal of psychopathology and behavioral assessment. 39(1)
- Publication Year :
- 2017
-
Abstract
- This study examined the psychometric properties of the Generalized Anxiety Disorder Scale-7 (GAD-7) in a sample of 536 outpatients presenting at a specialty clinic for anxiety and mood disorders. A confirmatory factor analysis (CFA) was used to test the unidimensionality of the GAD-7. This model did not fit the data well. The CFA solution was respecified correlating residuals among items assessing somatic symptoms. This respecified model fit the data well. A series of multiple-groups CFAs determined that the measurement properties of the GAD-7 were invariant between sexes. Scale reliability estimates of the GAD-7 were favorable for the full sample, and for males and females. Sensitivity and specificity could not be balanced at any cut-point. Findings attest to the value of this instrument as a dimensional indicator of GAD severity rather than a screening tool for the presence or absence of the disorder in outpatients with anxiety and mood disorders.
- Subjects :
- medicine.medical_specialty
Generalized anxiety disorder
Psychometrics
medicine.disease
Full sample
Confirmatory factor analysis
Article
030227 psychiatry
03 medical and health sciences
Clinical Psychology
0302 clinical medicine
Mood disorders
medicine
Anxiety
Screening tool
medicine.symptom
Psychiatry
Psychology
Generalized Anxiety Disorder Scale
030217 neurology & neurosurgery
Clinical psychology
Subjects
Details
- ISSN :
- 08822689
- Volume :
- 39
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Journal of psychopathology and behavioral assessment
- Accession number :
- edsair.doi.dedup.....a4384ed7e0f585dead720939f8eabc7a