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Psychometric evaluation of the Gamblers' Beliefs Questionnaire with treatment-seeking disordered gamblers
Walter R Winfree1, Meredith K Ginley1, James P Whelan1
1Institute for Gambling Education and Research, University of Memphis, USA.
Abstract:
Growing evidence for the efficacy of cognitive-behavioral therapy for disordered gambling supports the need for a comprehensive set of gambling-related assessment measures that have been validated with treatment-seeking samples. The Gamblers' Beliefs Questionnaire (GBQ) is a self-report measure that was designed to identify gambling-related cognitive distortions (Steenbergh, Meyers, May, & Whelan, 2002). In this study, the GBQ demonstrated good internal consistency and adequate construct validity in a treatment-seeking sample of disordered gamblers. Additionally, scores on the measure significantly decreased across a brief cognitive-behavioral treatment, providing validity support for use of the GBQ with a clinical population.
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