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Screening for generalized anxiety disorder using a self-report questionnaire : validity of the worry and anxiety questionnaire II

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Screening for generalized anxiety disorder using a self-report questionnaire : validity of the worry and anxiety questionnaire II

Doucet, Amelie (2008) Screening for generalized anxiety disorder using a self-report questionnaire : validity of the worry and anxiety questionnaire II. Masters thesis, Concordia University.

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Abstract

The Worry and Anxiety Questionnaire (WAQ) is an 11-item self-report screening questionnaire developed to measure the DSM-IV diagnostic criteria for Generalized Anxiety Disorder (GAD). The purpose of this research was to revise the WAQ and conduct a preliminary investigation of the psychometric properties of the modified questionnaire in an English-speaking, non-clinical sample. The modification process included adding a definition for worry, simplifying the Likert scale qualifiers and consulting with experts in the field of anxiety disorders. There was evidence of sensitivity, specificity as well as convergent and discriminant validity; scores on the WAQ-II were more strongly associated with scores on a measure of worry than with scores on measures of other anxiety disorders, depression and hypochondriasis. In addition, there was evidence of test-retest reliability over a three-week period. The WAQ-II's usefulness in research and clinical practice is discussed.

Divisions:Concordia University > Faculty of Arts and Science > Psychology
Item Type:Thesis (Masters)
Authors:Doucet, Amelie
Pagination:vii, 74 leaves : ill. ; 29 cm.
Institution:Concordia University
Degree Name:M.A.
Program:Psychology
Date:2008
Thesis Supervisor(s):Dugas, Michel
ID Code:975981
Deposited By: Concordia University Library
Deposited On:22 Jan 2013 16:18
Last Modified:18 Jan 2018 17:41
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