Assessment of the ICD-11 dimensional trait model: An introduction to the special section.

Abstract

The 11th edition of the World Health Organization’s International Classification of Diseases (ICD-11; World Health Organization, 2018) is scheduled to include a major shift in the classification of personality disorders. All (but one) of the ICD-10 categorical personality disorder syndromes will be deleted from the ICD-11, replaced by a five-domain dimensional trait model. The five ICD-11 trait domains are negative affectivity, detachment, dissociality, disinhibition, and anankastia. Clinicians first rate a patient with respect to a level of personality disorder severity, followed by the option of also rating the person with respect to the five trait domains along with a borderline pattern qualifier. This special section of Psychological Assessment is concerned with the self-report assessment of the ICD-11 personality disorders section, particularly (albeit not exclusively) with respect to the dimensional trait model.

The clinical utility of the ICD-11 classification of personality disorders and related traits: A preliminary scoping review

“…Overall, these results are not entirely consistent with the AMPD’s high clinical utility (Milinkovic and Tiliopoulos, 2020) and with findings of the ICD-11’s high validity (e.g. Bagby and Widiger, 2020; Oltmanns and Widiger, 2018, 2019) in previous reviews.…”

“…While conceptual, theoretical and critical literary contributions were used in the formation of the introduction, this non-empirical research was also excluded (e.g. Bach and Bernstein, 2018; Bagby and Widiger, 2020; Ekselius, 2018; Hopwood et al, 2018; Tyrer et al, 2019).…”

“…Operationalizations of the ICD-11 PD classification system have robust construct validity (Bagby and Widiger, 2020; Crego and Widiger, 2019; Oltmanns and Widiger, 2018, 2019), have high convergences with criterion measures (Bach et al, 2018; McCabe and Widiger, 2020; Oltmanns and Widiger, 2020) and show reliability cross-culturally (Bach and El Abiddine, 2020; Bach et al, 2020; Gutierrez et al, 2020; Kim et al, 2020; Somma et al, 2020). While construct validity is an essential requirement for the endorsement of a classification system, it is not sufficient (Hopwood et al, 2018).…”

Personality Disorders in the ICD-11: Spanish Validation of the PiCD and the SASPD in a Mixed Community and Clinical Sample

“…Finally, the diagnostic utility of the joint trait and severity parts also needs to be tested in studies that directly compare community and clinical samples. In this process, population norms have to be established, and nonarbitrary diagnostic thresholds should be set based on the prediction of maladaptive outcomes (Bagby & Widiger, 2020; Herpertz et al, 2017).…”

Does Personality Change Follow Deep Brain Stimulation in Parkinson's Disease Patients?

“…Measures of personality pathology focus predominantly on personality disorders, which are defined as "an enduring pattern of inner experience and behavior that deviates markedly from the expectations of the individual's culture, is pervasive and inflexible, has an onset in adolescence or early adulthood, is stable over time, and leads to distress or impairment" (American Psychiatric Association, p. 645). Even though personality disorders affect the whole person, and therefore may reflect dysfunction at the three layers of personality described above, assessment of personality disorders typically focuses on routine patterns of ABCDs (i.e., dispositional traits; Nuzum et al, 2019), and conceptualizations of personality pathology as maladaptive personality traits are gaining influence (e.g., Pocnet et al, 2018;Bagby and Widiger, 2020). Thus, existing personality pathology variables may be viewed as reflecting dispositional traits.…”