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PSY344H5 (46)
Chapter 11

Chapter 11 - Psychopaths

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Dax Urbszat

NotesFromReadingCHAPTER11PSYCHOPATHSPGS301322IntroductionPsychopathy A personality disorder defined by a collection of interpersonal affective and behavioural characteristics including manipulation lack of remorse or empathy impulsivity and antisocial behaviours Psychopaths are often called intraspecies predators where they seek vulnerable victims to use for their own benefit as they are dominant and selfish Assessment of PsychopathyHare Psychopathy ChecklistRevised PCLR The most popular method of assessing psychopathy in adults PCLR is a 20item rating scale that uses a semistructured interview and a review of file information to assess interpersonal affective and behavioural features of psychopathyoEach item is scored on a 3 point scale the score of 2 indicates the item definitely applies to the individual 1 indicates applies to some extend 0 doesnt applyInitial factor analyses of the PCLR indicated that it consisted of two correlational factorsoFactor 1 reflects the combination of interpersonal and affective traits whereas factor 2 is a combination of unstable and socially deviant traitsoFactor 1 is more strongly related to predatory violence emotionalprocessing deficits and poor treatment response whereas factor 2 is strongly related to reoffending substance abuse lack of education and poor family backgroundSome argued for a threefactor model of psychopathy 1 arrogant and deceitful interpersonal style 2 deficient affective experience and 3 impulsive and irresponsible behavioural style oRecent factor analysis of the PCLR includes these three factors plus a fourth factor called antisocial that includes antisocial items Another way of assessing for psychopathic traits is via selfreport questionnairesoAble to measure those attitudes and emotions that are not easily observed by others ie feelings of low self esteemoThey are easy to administer quick to score and relatively inexpensiveoIt is not necessary to worry about interrater reliability since only the individual is completing the scoreoSome questionnaires include measures of response styles to detect faking good or faking badChallenges of selfreports Psychopaths often lie psychopaths may not have sufficient insight to accurately assess their traits and it will likely be difficult for psychopaths to report on specific emotions if they have not experienced these emotionsPsychopathic Personality InventoryRevised PPIR and SelfReport Psychopathy Scale SRP are two of the most widely used selfreport scales that measure psychopathic traitsoPPIR is a 154item inventory designed to measure psychopathic traits in offender and community samples It consists of eight content scales and two validity scales and it measures two factors fearless dominance and selfcentered impulsivityoSRP is a 64item selfreport measure designed to assess psychopathic traits in community samples It consists of four factors erratic lifestyle callous affect interpersonal manipulation and criminal tendencies Psychopathy and Antisocial Personality DisorderAntisocial Personality Disorder APD A personality disorder characterized by a history of behaviour in which the rights of others are violatedSymptoms oFailure to conform to social norms with respect to lawful behaviours
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