ArticleInternational journal of methods in psychiatric research2026
Building a Brief Multidomain Questionnaire for Gambling Dual Disorder: Psychometric Validation and RDoC-Based Dimensional Structure.
Article in International journal of methods in psychiatric research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectivesGambling Disorder (GD) frequently co-occurs with other mental disorders, a clinical condition termed Gambling Dual Disorder (GDD) that is often overlooked. We aimed to develop and validate a brief multidomain questionnaire to assess GDD severity within a dimensional, transdiagnostic framework.
methodsA 55-item questionnaire was developed and tested across three phases (feasibility, reliability, validity) in 30, 57, and 223 treatment-seeking adults with DSM-5-TR GD. We assessed internal consistency, test-retest reliability, convergent validity against reference instruments (STAI, BDI-II, ISI, BIS, CAARS, SPIN, MULTICAGE-CAD-4, TCI-R, SDI), ROC-derived cutoffs, and the latent dimensional structure via exploratory and confirmatory factor analyses, mapped onto the NIMH Research Domain Criteria (RDoC).
resultsInternal consistency was excellent (α = 0.93); test-retest reliability was moderate (ICC = 0.29-0.62). Convergent validity was strong (r ≈ 0.51-0.72). ROC-based cutoffs prioritized sensitivity, with negative predictive values generally above 0.80. A global severity threshold near 1.44 enabled clinical stratification. A four-factor structure emerged: emotional distress and gambling impairment, impulsivity and behavioral activation, social anxiety and interpersonal suspiciousness, and executive dysfunction with negative self-perception.
conclusionThe instrument is a reliable, valid, RDoC-aligned tool for stratifying GDD severity and tailoring integrated interventions.
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