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Chapter 11

PSYC 3020 Chapter Notes - Chapter 11: Psychopathy Checklist, Psychopathy, Dangerous Offender

Course Code
PSYC 3020
Dan Yarmey

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Chapter 11- Psychopaths
Psychopathy= a personality disorder defined by a collection of interpersonal, affective, and
behavioural characteristics including manipulation, lack of remorse or empathy, impulsivity and
antisocial behaviour.
dominant, selfish, manipulative individuals who engage in impulsive and antisocial acts who feel
no remorse or shame for behaviour that often has a negative impact on others
predisposed to a temperament that makes them difficult to socialize
10-25% of adult offenders are diagnosed as psychopaths
Kulangeta=someone in the Inuit culture who repeatedly lies, cheats, steals things, doesn’t hunt,
sexually assaults women, and is often in trouble with the elders. He is pushed off the ice when
nobody was looking.
Different assessment methods developed to measure psychopathy
Cleckley (1976)-16 features to this assessment
Positive (good intelligence, social charm, absence of delusions and anxiety)
Emotional interpersonal (lack of remorse, untruthfulness, unresponsiveness in interpersonal
Behavioural (inadequately motivated antisocial behaviour, unreliability, failure to follow any life
Hare Psychopathy Checklist-Revised (PCL-R) (1991, 2003)
20 item rating scale (each item is scored on a 3 point scale)
Score of 2= applies to person, 1= somewhat applies, 0= symptom doesn’t exist!
Total score ranging from 0 to 40
“Psychopaths” in High PCL-R group (30+ score), middle PCL-R (20-30), “non psychopaths”
low scoring group (below 20)
Semi structured interview and review of file info to assess interpersonal, affective, and behaviour
features of psychopathy
Factor 1= interpersonal and affective tracts (related to predatory violence, emotional processing
deficits and poor treatment response)
Factor 2= unstable and socially deviant traits (related to reoffending, substance abuse, lack of
education, poor family background)
Hare Psychopathy Checklist: Screening Version (1995)
12 item version
Less time to administer
Less emphasis on criminal behaviour for scoring than the PCL-R
In the community psychopathy is rare
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Hare Psychopathy Checklist: Youth Version (2003)
Rating scale to measure psychopathic traits and behaviours in males and female adolescents
between 12-18
Antisocial Process Screening Device (2001)
Assesses precursors of psychopathic traits in children
Teacher/parent assigns a rating for the child
Self-report version for adolescents
Three Factor Model of Psychopathy
1) Arrogant and deceitful interpersonal style
2) Deficient affective experience
3) Impulsive and irresponsible behavioural style
4) Antisocial (**recent addition to PCL-R**)
Self-Report Questionnaires
1) Psychopathic Personality Inventory-Revised (PPI-R) (Liliendfeld and Widows,2005)
154 item inventories designed to measure psychopathic traits in offender and community
8 content scales, 2 validity scales (carelessness, positive/negative response styles, fearless
dominance and self centered impulsivity)
2) Self-Report Psychopathy Scale (SRP)
64 item self-report measure designed to assess psychopathic traits in community samples
erratic lifestyle, callous affect, interpersonal manipulation, and criminal tendencies
Advantages of Self -Report
Measure attitudes and emotions not easily observed by others (ie. Low self-esteem)
Easy to administer (ie. Internet survey)
Quick to score
Not interrater reliability worries as only the individual is completely the score
Disadvantages/Challenges of Self Report
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