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10-09-2016 | Uitgave 1/2017

Psychometric Properties of the Generalized Anxiety Disorder Scale-7 (GAD-7) in Outpatients with Anxiety and Mood Disorders

Tijdschrift:: Journal of Psychopathology and Behavioral Assessment > Uitgave 1/2017

Auteurs:: Lauren A. Rutter, Timothy A. Brown

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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.

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Titel: Psychometric Properties of the Generalized Anxiety Disorder Scale-7 (GAD-7) in Outpatients with Anxiety and Mood Disorders
Auteurs:: Lauren A. Rutter
Timothy A. Brown
Publicatiedatum: 10-09-2016
DOI: https://doi.org/10.1007/s10862-016-9571-9
Uitgeverij: Springer US
Tijdschrift: Journal of Psychopathology and Behavioral Assessment
Uitgave 1/2017
Print ISSN: 0882-2689
Elektronisch ISSN: 1573-3505

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