Development and initial evaluation of the ICD-11 personality disorder severity scale: PDS-ICD-11
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Development and initial evaluation of the ICD-11 personality disorder severity scale : PDS-ICD-11. / Bach, Bo; Brown, Tiffany A.; Mulder, Roger T.; Newton‐Howes, Giles; Simonsen, Erik; Sellbom, Martin.
In: Personality and Mental Health, Vol. 15, No. 3, 2021, p. 223-236.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Development and initial evaluation of the ICD-11 personality disorder severity scale
T2 - PDS-ICD-11
AU - Bach, Bo
AU - Brown, Tiffany A.
AU - Mulder, Roger T.
AU - Newton‐Howes, Giles
AU - Simonsen, Erik
AU - Sellbom, Martin
N1 - Publisher Copyright: © 2021 John Wiley & Sons, Ltd.
PY - 2021
Y1 - 2021
N2 - Aim: No measure has formally been developed to assess the published ICD-11 model of Personality Disorder (PD) severity. We therefore set out to develop and evaluate the 14-item Personality Disorder Severity ICD-11 (PDS-ICD-11) scale. Method: A representative U.S. community sample (N = 428; 50.9% women) and a New Zealand mental health sample (N = 87; 61.5% women) completed the PDS-ICD-11 scale along with a series of established PD and impairment measures. Results: Item response theory supported the unidimensionality of PDS-ICD-11 (median item loading of 0.68) and indicated that a PDS-ICD-11 score of 17.5 may serve as a benchmark for pronounced dysfunction. Correlation and regression analyses supported both criterion validity and incremental validity in predicting impairment and PD symptoms. The PDS-ICD-11 was particularly associated with measures of Level of Personality Functioning Scale (LPFS), Global PD severity, and Borderline PD symptom score. A comparison between clinical individuals diagnosed with an ICD-11 PD vs. no PD supported diagnostic validity. Conclusion: This initial construction study suggests that the PDS-ICD-11 constitutes a promising instrument that provides a quick impression of the severity of personality dysfunction according to the official ICD-11 PD guidelines. Clearly, more research is needed to corroborate its validity and utility. The PDS-ICD-11 scale is provided as online supporting information.
AB - Aim: No measure has formally been developed to assess the published ICD-11 model of Personality Disorder (PD) severity. We therefore set out to develop and evaluate the 14-item Personality Disorder Severity ICD-11 (PDS-ICD-11) scale. Method: A representative U.S. community sample (N = 428; 50.9% women) and a New Zealand mental health sample (N = 87; 61.5% women) completed the PDS-ICD-11 scale along with a series of established PD and impairment measures. Results: Item response theory supported the unidimensionality of PDS-ICD-11 (median item loading of 0.68) and indicated that a PDS-ICD-11 score of 17.5 may serve as a benchmark for pronounced dysfunction. Correlation and regression analyses supported both criterion validity and incremental validity in predicting impairment and PD symptoms. The PDS-ICD-11 was particularly associated with measures of Level of Personality Functioning Scale (LPFS), Global PD severity, and Borderline PD symptom score. A comparison between clinical individuals diagnosed with an ICD-11 PD vs. no PD supported diagnostic validity. Conclusion: This initial construction study suggests that the PDS-ICD-11 constitutes a promising instrument that provides a quick impression of the severity of personality dysfunction according to the official ICD-11 PD guidelines. Clearly, more research is needed to corroborate its validity and utility. The PDS-ICD-11 scale is provided as online supporting information.
U2 - 10.1002/pmh.1510
DO - 10.1002/pmh.1510
M3 - Journal article
C2 - 34002530
AN - SCOPUS:85105824850
VL - 15
SP - 223
EP - 236
JO - Personality and Mental Health
JF - Personality and Mental Health
SN - 1932-8621
IS - 3
ER -
ID: 269611925