The Hare Psychopathy Checklist–Revised (PCL-R)

Written by the Insight Platform team from the published literature (sources below). Last reviewed 10 August 2026. Educational content — professional review pending; not medical advice.

Educational overview. Contains no scoring items — the PCL-R is copyrighted by Multi-Health Systems (MHS), and, more fundamentally, it cannot be self-administered at all.

What the PCL-R actually is

Developed by Robert Hare through the 1980s (revised 1991; 2nd edition 2003), the PCL-R is the dominant instrument for assessing psychopathy in forensic settings. It is a 20-item symptom-construct rating scale: a trained clinician rates each item 0, 1, or 2 (absent, partial, clearly present) based on a semi-structured interview plus a mandatory review of collateral file information — criminal records, institutional files, employment history, interviews with others. Total scores run 0–40.

This is why there is no online PCL-R. The scoring method is the instrument. Psychopathic traits include manipulativeness and pathological lying — which is precisely why the PCL-R does not rely on what the examinee says about themselves. Self-ratings of PCL-R items are invalid by design, not merely unlicensed.

Factor structure

• Factor 1 — Interpersonal/Affective: glib and superficial charm, grandiosity, pathological lying, conning and manipulativeness (interpersonal facet); lack of remorse, shallow affect, callousness and lack of empathy, failure to accept responsibility (affective facet).
• Factor 2 — Lifestyle/Antisocial: need for stimulation, parasitic lifestyle, lack of realistic long-term goals, impulsivity, irresponsibility (lifestyle facet); poor behavioral controls, early behavior problems, juvenile delinquency, criminal versatility (antisocial facet).

Two items (promiscuous sexual behavior; many short-term marital relationships) load on the total score without belonging to either factor. Later models split the two factors into the four facets noted above.

Cutoffs and use

A total of 30+ is the conventional North American research threshold for "psychopathy"; European research has often used 25+. The instrument is used in parole and sentencing evaluations, risk-assessment batteries (e.g. alongside the HCR-20), and research on offending. Scores correlate with general and violent recidivism — one reason its courtroom weight is so large.

Controversies a serious student should know

• Adversarial allegiance: field studies show prosecution-retained and defense-retained evaluators produce systematically different scores for the same person — inter-rater reliability in adversarial practice is far below lab figures.
• Labeling effects: calling someone "a psychopath" in court measurably shifts judges and juries; critics argue the label does moral work beyond the evidence.
• Factor-1 prediction debate: the interpersonal/affective core that feels most "psychopathic" predicts recidivism more weakly than the antisocial-lifestyle factor, which overlaps heavily with ordinary criminal history.
• Construct drift: researchers debate whether the PCL-R defines psychopathy or merely measures one operationalization of it (compare the triarchic model's boldness–meanness–disinhibition).

Self-report analogues in research

Research psychology uses self-report scales measuring trait psychopathy in non-clinical populations — the Levenson Self-Report Psychopathy Scale (LSRP), the Short Dark Triad (SD3), and the Triarchic Psychopathy Measure. These measure normal-range trait variation and do not diagnose anyone; the SD3 is available in the assessment section with exactly that framing (the LSRP is not offered — its item text is APA-copyrighted without a reproduction licence).

Key sources: Hare, R. D., PCL-R 2nd ed. Technical Manual (MHS, 2003); Hare, Without Conscience (1993); Edens & Boccaccini's field-reliability studies; Skeem & Cooke (2010) construct debate in Psychological Assessment.