Comparison of clinicians’ and researchers’ ratings of proposed diagnostic criteria for compulsive buying-shopping disorder within a Delphi study

Nora M Laskowski, Patrick Trotzke, Kathina Ali, Dan B Fassnacht, Mike Kyrios, Michael Häder and Astrid Müller

PLOS ONE, 2023, vol. 18, issue 4, 1-15

Abstract: Diagnostic criteria for compulsive buying shopping disorder were recently proposed based on a Delphi consensus study including 138 experts from 35 countries. The present study represents a secondary analysis of those data. To provide further support for the validity of expert responses in the Delphi study, the sample was retrospectively divided into clinician and researcher subgroups. The two groups were compared with respect to demographic variables, their importance ratings of clinical features, possible diagnostic criteria, differential diagnoses and specifiers of compulsive buying shopping disorder. Researchers reported less years of treating/assessing individuals with compulsive buying shopping disorder and stated that they have treated/assessed individuals with compulsive buying shopping disorder less often in the last 12 months than clinicians. Responses from the two groups concerning the importance ratings of possible diagnostic criteria of compulsive buying shopping disorder converged with only few minor differences with small to moderate group effects. However, even for those criteria, the consensus threshold (≥75% agreement with the proposed criterion) was reached in both groups. The lack of differences in the responses of the two groups indicates good validity for the proposed diagnostic criteria. Future research should address the clinical applicability and diagnostic validity of the criteria.

Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0283978

DOI: 10.1371/journal.pone.0283978

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