Validating the German Version of the Personality Disorder Severity-ICD-11 Scale Using Nominal Response Models
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Validating the German Version of the Personality Disorder Severity-ICD-11 Scale Using Nominal Response Models. / Zimmermann, Johannes; Falk, Carl F.; Wendt, Leon; Spitzer, Carsten; Fischer, Felix; Bach, Bo; Sellbom, Martin; Müller, Sascha.
In: Psychological Assessment, Vol. 35, No. 3, 12.2022, p. 257-268.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Validating the German Version of the Personality Disorder Severity-ICD-11 Scale Using Nominal Response Models
AU - Zimmermann, Johannes
AU - Falk, Carl F.
AU - Wendt, Leon
AU - Spitzer, Carsten
AU - Fischer, Felix
AU - Bach, Bo
AU - Sellbom, Martin
AU - Müller, Sascha
N1 - Publisher Copyright: © 2022 American Psychological Association
PY - 2022/12
Y1 - 2022/12
N2 - The International Classification of Diseases (ICD-11) features a new classification of personality disorders (PD), focusing on the severity of PD. Although there are numerous self-report measures that assess PD severity, to date only the Personality Disorder Severity-ICD-11 (PDS-ICD-11) is based on ICD-11’s operationalization of PD. Initial results indicated that the PDS-ICD-11 measures a unidimensional construct, but the assumptions made for scoring its bipolar items had not been fully examined. The aim of this study is to fill this gap and investigate the latent structure of the German version of the PDS-ICD-11 using nominal response models (NRM), which allow for testing these assumptions. We applied the PDSICD-11 together with other self-report measures in a sample of 1,228 individuals from the general population. NRM indicated an acceptable fit of a unidimensional model, with only few deviations from the theoretically imposed scoring scheme. The total score was sufficiently reliable and correlated meaningfully with other self-report measures of PD severity. Regarding Diagnostic and Statistical Manual of Mental Disorders (DSM-5) and ICD-11 maladaptive trait domains, the total score was found to be most strongly associated with negative affectivity, whereas associations with antagonism and anankastia were small or nonsignificant. We conclude that the proposed scoring scheme of the PDS-ICD-11 items is acceptable, and the examined psychometric properties of the German version largely correspond to the results from the English-language development study. The total score, however, depicts more internalizing than externalizing personality pathology. Future studies should investigate the diagnostic efficiency of the PDS-ICD-11 scale using multiple methods and time points as well as clinical and forensic samples
AB - The International Classification of Diseases (ICD-11) features a new classification of personality disorders (PD), focusing on the severity of PD. Although there are numerous self-report measures that assess PD severity, to date only the Personality Disorder Severity-ICD-11 (PDS-ICD-11) is based on ICD-11’s operationalization of PD. Initial results indicated that the PDS-ICD-11 measures a unidimensional construct, but the assumptions made for scoring its bipolar items had not been fully examined. The aim of this study is to fill this gap and investigate the latent structure of the German version of the PDS-ICD-11 using nominal response models (NRM), which allow for testing these assumptions. We applied the PDSICD-11 together with other self-report measures in a sample of 1,228 individuals from the general population. NRM indicated an acceptable fit of a unidimensional model, with only few deviations from the theoretically imposed scoring scheme. The total score was sufficiently reliable and correlated meaningfully with other self-report measures of PD severity. Regarding Diagnostic and Statistical Manual of Mental Disorders (DSM-5) and ICD-11 maladaptive trait domains, the total score was found to be most strongly associated with negative affectivity, whereas associations with antagonism and anankastia were small or nonsignificant. We conclude that the proposed scoring scheme of the PDS-ICD-11 items is acceptable, and the examined psychometric properties of the German version largely correspond to the results from the English-language development study. The total score, however, depicts more internalizing than externalizing personality pathology. Future studies should investigate the diagnostic efficiency of the PDS-ICD-11 scale using multiple methods and time points as well as clinical and forensic samples
KW - ICD-11
KW - nominal response models
KW - personality disorder
KW - self-report
KW - severity
U2 - 10.1037/pas0001199
DO - 10.1037/pas0001199
M3 - Journal article
C2 - 36455031
AN - SCOPUS:85145846891
VL - 35
SP - 257
EP - 268
JO - Psychological Assessment
JF - Psychological Assessment
SN - 1040-3590
IS - 3
ER -
ID: 365557862