Development and Evaluation of the Dutch Clinician-Administered PTSD Scale for DSM-5 (CAPS-5)

 

Background: In 2013, the Clinician-Administered PTSD Scale, the golden standard to assess PTSD, was adapted to the DSM-5 (CAPS-5).

 

Objective: This project aimed to develop a clinically relevant Dutch translation of the CAPS-5 and to investigate its psychometric properties.

 

Method: We conducted a stepped translation including Delphi rounds with a crowd of 44 Dutch psychotrauma experts and five senior psychotrauma experts. Using partial crowd-translations, two professional translations and the official Dutch translation of the DSM-5, each senior expert aggregated one independent translation. Consensus was reached plenary. After back-translation, comparison with the original CAPS-5 and field testing, a last round with the senior experts resulted in the final version. After implementation clinicians conducted CAPS-5 interviews with 669 trauma-exposed individuals referred for specialized diagnostic assessment. Reliability of the Dutch CAPS-5 was investigated through internal consistency and interrater reliability analyses, and construct validity through confirmatory factor analysis (CFA). Results: CAPS-5 total severity score showed high internal consistency (α = .90) and interrater reliability (ICC = .98, 95% CI: .94–.99). CAPS-5 diagnosis showed modest interrater reliability (kappa = .59, 95% CI: .20–.98). CFA with alternative PTSD models revealed adequate support for the DSM-5 four-factor model, but a six-factor (Anhedonia) model fit the data best.

 

Conclusions: The Dutch CAPS-5 is a carefully translated instrument with adequate psychometric properties. Current results add to the growing support for more refined (six and seven) factor models for DSM-5 PTSD indicating that the validity and clinical implications of these models should be objective of further research

Referentie: 
Manon A. Boeschoten, Niels Van der Aa, Anne Bakker, F. Jackie June Ter Heide, Marthe C. Hoofwijk, Ruud A. Jongedijk, Agnes Van Minnene, Bernet M. Elzinga and Miranda Olff | 2018
In: European Journal of Psychotraumatology, ISSN 2000-8066 | 9 | 1 | 1546085
https://doi.org/10.1080/20008198.2018.1546085
Trefwoorden: 
Diagnosis, Instruments, PTSD (DSM-5)