Smith AH, Paulus DJ, Norton PJ. Transdiagnostic assessment of anxiety symptoms using the Anxiety Disorder Diagnostic Questionnaire - weekly version.
ANXIETY STRESS AND COPING 2016;
30:96-106. [PMID:
27229362 DOI:
10.1080/10615806.2016.1186272]
[Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND
Norton and Robinson [2010. Development and evaluation of the anxiety disorder diagnostic questionnaire. Cognitive Behaviour Therapy, 39(2), 137-149. doi: 10.1080/16506070903140430 ] developed the Anxiety Disorder Diagnostic Questionnaire (ADDQ) as a transdiagnostic assessment of fear and anxiety to address problems in using diagnosis-specific measures as well as limitations with the extant transdiagnostic measures of anxiety. The present study validated a weekly version of the ADDQ, the Anxiety Disorder Diagnostic Questionnaire - Weekly (ADDQ-W) allowing session-by-session transdiagnostic assessment of anxiety.
METHOD
Data were a secondary analysis of 49 treatment-seeking outpatient adults from a previous clinical trial. The ADDQ-W was administered weekly over the course of 12-group therapy sessions.
RESULTS
The ADDQ-W was a valid weekly measure and neither scores, F(2, 37) = 2.70, p = .08, nor trajectories of change, F(2, 37) = 0.31, p = .73, differed by primary diagnosis, though power was limited. Rate of ADDQ-W change was predictive of change in both primary diagnosis severity, t = 2.40, p = .02, β = 0.32, and overall severity, t = 3.01, p < .01, β = 0.36, at post-treatment.
CONCLUSIONS
This study has established initial support for the use of the brief, easily scored, ADDQ-W for repeated assessment over treatment using a diagnostically heterogeneous clinical sample of treatment-seeking individuals.
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