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The Levenson, Kiehl, and Fitzpatrick (1995) Self-Report Psychopathy Scale (LSRP) was introduced in the mid-1990s as a brief measure of psychopathy and has since gained considerable popularity. Despite its attractiveness as a brief... more
The Levenson, Kiehl, and Fitzpatrick (1995) Self-Report Psychopathy Scale (LSRP) was introduced in the mid-1990s as a brief measure of psychopathy and has since gained considerable popularity. Despite its attractiveness as a brief psychopathy tool, the LSRP has received limited research regarding its factor structure and convergent and discriminant validity. The present study examined the construct validity of the LSRP, testing both its factor structure and the convergent and discriminant validity. Using a community sample of 1,257 undergraduates (869 females; 378 males), we tested whether a 1-, 2-, or 3-factor model best fit the data and examined the links between the resultant factor structures and external correlates. Confirmatory factor analysis (CFA) findings revealed a 3-factor model best matched the data, followed by an adequate-fitting original 2-factor model. Next, comparisons were made regarding the convergent and discriminant validity of the competing 2- and 3-factor mode...
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This study used an item response theory (IRT) model and a large adolescent sample of justice involved youth (N = 1,007, 38% female) to examine the item functioning of the Psychopathy Checklist-Youth Version (PCL: YV). Items that were most... more
This study used an item response theory (IRT) model and a large adolescent sample of justice involved youth (N = 1,007, 38% female) to examine the item functioning of the Psychopathy Checklist-Youth Version (PCL: YV). Items that were most discriminating (or most sensitive to changes) of the latent trait (thought to be psychopathy) among adolescents included "glibness/superficial charm," "lack of remorse," and "need for stimulation," whereas items that were least discriminating included "pathological lying," "failure to accept responsibility," and "lacks goals." The items…
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... and tolerant of others, (b) academic/work success and prosocial behavior, (c) responsibility ... assessment, part of the diagnostic validity should involve a close examination of the ... the basic concept should be defined as clearly... more
... and tolerant of others, (b) academic/work success and prosocial behavior, (c) responsibility ... assessment, part of the diagnostic validity should involve a close examination of the ... the basic concept should be defined as clearly and thoroughly as possible through relevant literature ...
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Research Interests: Psychology, Cognitive Science, Law, Human Rights Law, Forensic psychiatry, and 14 moreCriminal Psychology, Multivariate Analysis, Motivation, Humans, Gender Difference, Mental Disorder, Middle Aged, Cognitive impairment, Adult, Malingering, Sex Factors, Cost Benefit Analysis, Reproducibility of Results, and Factor structure
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Research Interests: Psychology, Cognitive Science, Psychometrics, Intelligence, Personality Assessment, and 19 moreComorbidity, England, Callous-Unemotional Traits, Emotions, Antisocial Personality Disorder, Humans, Child, Wales, Female, Male, Conduct Disorder, Longitudinal Studies, Sex Factors, Cognitive Ability, Cognitive Function, Conduct Problems, Impulsive Buying Behavior, Cognition disorders, and Cohort Studies
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Research Interests: Psychology, Abnormal Psychology, Psychometrics, Juvenile Delinquency, Adolescent, and 13 moreComorbidity, Antisocial Personality Disorder, Oppositional Defiant Disorder, Humans, Child, Personality Assessment Inventory, Female, Construct Validity, Male, Regression Analysis, Conduct Disorder, Multiple Regression, and Abnormal
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Psychopathy in youth has received increased recognition as a critical clinical construct for the evaluation and management of adolescents who have come into contact with the law (e.g., Forth, Hare, & Hart, 1990; Frick, 1998; Lynam, 1996,... more
Psychopathy in youth has received increased recognition as a critical clinical construct for the evaluation and management of adolescents who have come into contact with the law (e.g., Forth, Hare, & Hart, 1990; Frick, 1998; Lynam, 1996, 1998). Although considerable attention has been devoted to the adult construct of psychopathy and its relation to recidivism, psychopathy in adolescents has been less thoroughly researched. Recently, a psychopathy scale (Murrie and Cornell Psychopathy Scale; Murrie & Cornell, 2000) was developed from items of the Millon Adolescent Clinical Inventory (MACI; Millon, 1993). This scale was found to be highly related to the Psychopathy Checklist-Revised (Hare, 1991) and was judged to have demonstrated good criterion validity. A necessary step in the validation process of any psychopathy scale is establishing its predictive validity. With this in mind, we investigated the ability of the MACI Psychopathy Scale to predict recidivism with 55 adolescent offen...
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Research Interests: Psychology, Computer Graphics, Law, Anger, Psychometrics, and 18 moreJuvenile Delinquency, Item Response Theory, Criminal Psychology, Adolescent, Antisocial Personality Disorder, Empathy, Affect, Humans, Child, Personality Assessment Inventory, Machiavellianism, Female, Florida, Personal Construct Theory, Mathematical Computing, Prisoners, Self Concept, and Reproducibility of Results
Psychopathy is thought by many to be an untreatable disorder. This article puts the treatment of psychopathy into historical context and reviews research on the treatment of the disorder with adults (K = 8) and youth (K = 5). Findings... more
Psychopathy is thought by many to be an untreatable disorder. This article puts the treatment of psychopathy into historical context and reviews research on the treatment of the disorder with adults (K = 8) and youth (K = 5). Findings indicate that treatment for adults shows low to moderate success with three of eight studies demonstrating treatment gains. Treatment of youth appears to be more promising with six of eight studies showing treatment benefits. Although less than optimal success rates with adults, we suggest that bright line distinctions regarding the treatability of those with psychopathic characteristics from non-psychopathic individuals are inappropriate at this time. We conclude with directions for future research and briefly introduce the mental models approach for the treatment of psychopathy in youths.
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With the widespread adoption of the hl hlPI-2 as an assessment tool, psychologists are frequently required to make important decisions regarding the validity of its clinical profiles and a determination of malingering. Ten hlhZPI-2... more
With the widespread adoption of the hl hlPI-2 as an assessment tool, psychologists are frequently required to make important decisions regarding the validity of its clinical profiles and a determination of malingering. Ten hlhZPI-2 fake-bad scales/indexes are reviewed with respect to their ...
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Research Interests: Psychology, Assessment, Psychometrics, Schizophrenia, Juvenile Delinquency, and 18 morePersonality Assessment, Adolescent, Antisocial Personality Disorder, Humans, Business and Management, Female, Confirmatory factor analysis, Construct Validity, Male, Mental Disorders, First-Order Logic, Psychometric Properties, Insanity Defense, Adult, First Order Logic, Five Factor Model, Reproducibility of Results, and Psychotic Disorders
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The Personality Assessment Inventory (PAI) is a new generation multiscale inventory that is widely used in clinical settings. The current study examined its convergent validity with emergency referrals in a metropolitan correctional... more
The Personality Assessment Inventory (PAI) is a new generation multiscale inventory that is widely used in clinical settings. The current study examined its convergent validity with emergency referrals in a metropolitan correctional facility. A sample of 80 referrals completed two phases of an assessment study. As a measure of convergent validity, results on select PAI scales were compared to the Schedule of Affective Disorders and Schizophrenia (SADS), the Structured Interview of Reported Symptoms (SIRS), and the Suicide Probability Scale (SPS). Overall, results indicated moderate to good convergent validity for the following: (a) screening for feigned profiles, (b) establishing clinical correlates of common disorders, and (c) evaluating the potential for suicidal ideation.