[The Dutch Personality Inventory for DSM-5 (PID-5-NL): psychometric properties and clinical application]

Area of Science:

• Psychiatry
• Psychology
• Clinical Psychology

Background:

• The Dutch Personality Inventory for DSM-5 (PID-5-NL) is recommended by the APA for assessing maladaptive personality traits within the Alternative DSM-5 model.
• This inventory is crucial for understanding personality disorders.

Purpose of the Study:

• To evaluate the psychometric properties of the PID-5-NL.
• To establish normative data for the PID-5-NL.
• To demonstrate the application of the PID-5-NL in clinical settings.

Main Methods:

• The PID-5-NL was administered to adult general population samples in Flanders, Belgium.
• The PID-5-NL was also administered to patients diagnosed with personality disorders in the Netherlands.
• A case vignette illustrated PID-5 scores for a patient with borderline personality disorder.

Main Results:

• The PID-5-NL exhibited satisfactory to good reliability and validity, consistent with international findings.
• Notably, patients with personality disorders scored similarly to or lower than the general population on several trait facets.
• This suggests a nuanced understanding of trait expression in clinical populations.

Conclusions:

• The PID-5-NL is an effective instrument for gaining straightforward insights into personality traits relevant for diagnosis and treatment planning.
• Provisional reference groups for clinical practice in mental healthcare are now available.
• Further research is recommended to refine these reference groups and investigate patients with externalizing personality problems.