PDQ-4 Personality Disorder Screening

About the PDQ-4

The Personality Diagnostic Questionnaire-4 (PDQ-4) is a self-report measure for screening DSM-IV personality disorders.

It assesses 12 personality disorders to help identify personality trait patterns that may warrant further evaluation.

Personality Disorders Screened

• Paranoid: Suspiciousness and distrust of others
• Schizoid: Emotional coldness and social detachment
• Schizotypal: Odd thoughts, behaviors, and appearance
• Antisocial: Disregard for others' rights, lack of remorse
• Borderline: Emotional instability, unstable relationships
• Histrionic: Excessive emotionality, attention-seeking
• Narcissistic: Grandiosity, lack of empathy
• Avoidant: Social inhibition, fear of rejection
• Dependent: Excessive dependence, fear of separation
• Obsessive-Compulsive: Perfectionism, inflexibility
• Passive-Aggressive: Passive resistance, resentment
• Depressive: Pervasive gloominess, negativity

Applications

• Personality disorder screening
• Clinical assessment support
• Mental health research
• Treatment planning

References

• Hyler, S. E. (1994). Personality Diagnostic Questionnaire-4 (PDQ-4). New York: New York State Psychiatric Institute.
• Hyler, S. E., Skodol, A. E., Kellman, H. D., Oldham, J. M., & Rosnick, L. (1990). A valid, brief screening form for DSM-III-R personality disorders. American Journal of Psychiatry, 147, 45-50.