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Assessing the reliability of the Gambling Functional Assessment: Revised
Jeffrey N Weatherly1, Joseph C Miller, Kevin S Montes
1Department of Psychology, University of North Dakota, Grand Forks, ND 58202-8380, USA. jeffrey.weatherly@email.und.edu
Journal of Gambling Studies
|October 8, 2011
Summary
The Gambling Functional Assessment-Revised shows good internal consistency and temporal reliability for assessing gambling behavior consequences. This revised tool is valuable for researchers and therapists studying gambling motivations.
Area of Science:
- Psychology
- Behavioral Science
Background:
- The Gambling Functional Assessment (GFA) was developed to identify maintaining consequences of gambling behavior.
- Previous psychometric evaluations indicated a need for improvement in the GFA's properties.
Purpose of the Study:
- To investigate the internal consistency and temporal reliability of the Gambling Functional Assessment-Revised (GFA-R).
Main Methods:
- The GFA-R was administered to 1,060 undergraduate students.
- Temporal reliability was assessed via re-administration at 4 and 12 weeks.
- The South Oaks Gambling Screen (SOGS) was used for comparative temporal reliability analysis.
Main Results:
- Internal consistency measures for the GFA-R were good to excellent, even after excluding non-gamblers.
- Temporal stability was generally very good.
- A slight exception in temporal stability was noted for the 'escape' consequence at the 12-week interval.
Conclusions:
- The Gambling Functional Assessment-Revised demonstrates strong psychometric properties.
- The GFA-R is a potentially valuable instrument for clinicians and researchers examining the underlying reasons for gambling behavior.
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