Assessing psychopathy in young people: the validity of the Psychopathic Checklist: Youth Version for a sample of Spanish offenders

In this study, we assessed the validity of the Psychopathic Checklist: Youth Version (PCL:YV) in a Spanish sample of juvenile court-involved youths. Although recent Anglo-Saxon literature on the topic supports the usefulness of psychopathic traits in adolescent offenders for predicting recidivism and future violence, little is still known about their predictive ability for other cultures. The results of this study suggest that the PCL:YV possesses adequate concurrent criterion-related validity (by using self-reported version of Antisocial Process Screening Device) and retrospective validity (particularly as regards the antisocial, but also the affective–interpersonal domain). Specifically, retrospective validity was confirmed by positive correlations with history of truancy at school, poor parenting, parental delinquency, self-reported antisocial behaviour and illicit behaviour patterns including violent offences recorded in official files; however, careful analysis revealed that the Lifestyle and Antisocial factors are the main dimensions related to past offences, whether violent or otherwise. In conclusion, the PCL:YV is a convenient instrument for assessing psychopathy, and, hence, the risk of criminality, in youths.     

Psychopathic Personality Traits and Delinquent and Risky Sexual Behaviors in Croatian Sample of Non-referred Boys and Girls

The current study investigated the association of psychopathic traits with violent and non-violent delinquency, delinquency versatility, and risky sexual behavior in Croatian sample of non-referred boys (n = 226) and girls (n = 480). Psychopathic traits were measured by the self-report Youth Psychopathic Traits Inventory (YPI). Consistent with the study’s hypotheses, Impulsive-Irresponsible and Callous-Unemotional dimensions were most consistently associated with all outcome measures. Results of the regression analyses showed that the Impulsive-Irresponsible behavioral style had stronger association with non-violent delinquency and delinquency versatility for boys. However, the Impulsive-Irresponsible dimension had stronger influence on risky sexual behavior for girls compared with boys. The results of a two-group confirmatory factor analysis revealed that the three-factor model of the YPI was invariant across gender.     

Examining the relationships between sub-clinical psychopathic traits with shame,guilt and externalisation response tendencies to everyday transgressions

Although many theories of psychopathy include reference to some form of emotional deficit, surprisingly little research has examined the relationships between psychopathic traits and important self-conscious moral emotions such as shame and guilt. The present study sought to examine these relationships in a sub-clinical sample, taking into account the important theoretical differences between the two emotions. Participants (N = 739) completed a measure of psychopathic traits and a measure of self-conscious affect style. Both primary and secondary psychopathic traits were found to be inversely related to guilt-proneness; however, the effect size was greater for primary psychopathic traits. Primary psychopathic traits were unrelated to shame-proneness, while secondary psychopathic traits were positively related to shame-proneness. Both primary and secondary traits were positively related to externalisation; however the effect size was greater for primary over secondary traits. The findings provide support for affective differences between psychopathy variants.     

Adolescents with Psychopathic Characteristics in a Substance Abusing Cohort: Treatment Process and Outcomes

Psychopathy is a condition with important consequences both for individuals who experience it and for the communities in which they live. Although the assessment of psychopathy among adolescents remains controversial, some evidence suggests that the affective and behavioral traits of adult psychopathy begin to emerge in childhood (B. B. Lahey & A. Kazdin, 1990) and continue across the lifespan (A. E. Forth, S. D. Hart, & R. D. Hare, 1990). The present study used the Psychopathy Checklist: Youth Version (PCL:YV; A. E. Forth, S. D. Kosson, & R. D. Hare, in press) to retrospectively assess psychopathic characteristics, treatment process, and outcomes of 64 individuals referred for treatment to a substance abuse program for adjudicated adolescents. This study focused on the relationship between psychopathic characteristics and treatment process and outcome variables, including attrition rates, quality of participation, substance use throughout treatment, clinical improvement, and 12-month recidivism rates. Psychopathic characteristics were negatively related to treatment process and outcome variables, including attrition, participation, substance use, and clinical improvement. Psychopathic characteristics were positively related to the number of arrests in the 12 months following treatment completion. Implications for treatment and future research with adolescents displaying psychopathic characteristics are discussed.     

Psychological and behavioral adjustment in female youths with high or low psychopathic traits

The aim of the present study was to analyze the role of psychopathic traits in female juvenile delinquency. Using a sample of 236 young females from the Juvenile Detention Centers of the Portuguese Ministry of Justice and schools in the Lisbon area, a group of female youths with high psychopathic traits (n = 118; M = 15.84 years of age; range = 14–18 years of age) and a group of female youths with low psychopathic traits (n = 118; M = 15.77 years of age; range = 14–18 years of age) were formed based on the Portuguese version of the Antisocial Process Screening Device-Self-report (APSD-SR). The results showed that young females with high psychopathic traits start engaging in criminal activities and come into contact with the justice system earlier in life; exhibit higher levels of behavioral problems, conduct disorder, delinquent behaviors and serious criminality; and demonstrate lower levels of self-esteem and pro-social behavior. The importance of some variables in predicting group membership (high versus low psychopathic traits) was established through a binary logistic regression. Our findings reinforce the importance of the psychopathy construct for the early identification of potentially high-risk female youths and for the assessment of female youths who have already come into contact with the judicial system.     

Exploring the Taxometric Status of Psychopathy Among Youthful Offenders: Is There a Juvenile Psychopath Taxon?

Several recent studies have examined the taxometric status of psychopathic and antisocial traits in adult samples, almost all of which have supported a dimensional model. The three studies examining whether psychopathic traits among youths are best conceptualized as a discrete latent class (or taxon) or as a dimensional construct, however, have provided conflicting results. In a sample of 723 delinquent youths who completed two self-report measures of psychopathic traits, results across taxometric procedures provided uniform support for a dimensional model. Additionally, analyses comparing putative dichotomous and dimensional classification models in terms of predicting relevant criterion measures (e.g., delinquent behavior, substance abuse, and hostility) indicated superior validity for the dimensional model. Implications for research, policy, and practice are reviewed.     

Cross-ethnic generalizability of the three-factor model of psychopathy: the Youth Psychopathic Traits Inventory in an incarcerated sample of native Dutch and Moroccan immigrant boys

Background

Previous research provides support for the existence of the psychopathy construct in youths. However, studies regarding the psychometric properties of psychopathy measures with ethnic minority youths are lacking.

Methods

In the present study, the three-factor structure of the Youth Psychopathic Traits Inventory (YPI) was examined for both native Dutch youth (N = 158) and an ethnic minority group, Moroccans (N = 141), in an incarcerated adolescent population in the Netherlands.

Results

Our results showed that the three-factor structure of the YPI is comparable across an ethnic majority and an ethnic minority group in an incarcerated sample in the Netherlands. Moreover, associations between psychopathic traits and mental health problems were similar for both ethnic groups.

Conclusion

The results support the cross-ethnic generalizability of the three-factor model of psychopathy as measured through the Youth Psychopathic Traits Inventory.     

Self-reported personality traits in forensic populations: a meta-analysis

The current study covers a systematic review and meta-analysis of the prevalence of self-reported deviant or disruptive personality traits: anger, aggression, hostility, antisocial traits, psychopathy, and impulsivity in forensic populations worldwide. A computer-based search of titles was carried out using the PubMed electronic database for articles published in English that included a self-report instrument for personality characteristics in combination with a forensic population (i.e. detained in remand, sentenced and/or in enforced treatment, or on parole). The final sample consisted of 39 studies (N?=?11,716) that together used 17 different instruments and reported on 32 subscales or constructs that fitted our current interest. Results showed significantly higher levels of self-reported antisocial and psychopathic features in forensic samples, including a significant effect of the assessment instrument and subscale used. No significant differences were found for self-reported impulsivity, anger, aggression, or hostility in forensic populations compared to norm scores of non-forensic samples. Possible explanations, including suggestions that forensic populations are prone to providing socially desirable answers on self-report questionnaires, possibly to gain advantages such as a lower prison sentence or to avoid enforced treatment, are discussed, as well as limitations, and suggestions for future research and clinical practice.     

Collateral report of psychopathy: convergent and divergent validity of the psychopathic personality inventory-short form

Psychopathy is a personality syndrome comprised of interpersonal, affective, and behavioral features that has emerged as a correlate of intimate partner violence perpetration. One commonly used self-report measure of psychopathy is the Psychopathic Personality Inventory-Short Form (PPI-SF). The current study employed a multi-trait, multi-method approach to test convergent and discriminant validity of the measure in partner-violent couples by comparing males’ self-report of psychopathy to the informant report of their female partner (N = 114). It was hypothesized that the female partner report of the male’s psychopathy would be highly correlated with the male report of his own psychopathy, thus providing evidence for the construct validity and interrater reliability of the PPI-SF. Analyses found that male and female reports were correlated significantly on the two major factors of the PPI-SF. Furthermore, the female report explained a significant amount of variance over and above men’s self-report on PAI scales designed to indicate antisocial personality traits.     

Assessing Callous-Unemotional traits across different groups of youths: further cross-cultural validation of the Inventory of Callous-Unemotional traits

The Inventory of Callous-Unemotional (CU) Traits (ICU) is a self-report questionnaire which was developed to measure the affective features of psychopathy in children and adolescents. Previous studies reported both support and difficulties with this promising new measure. The present study investigated the psychometric and discriminating qualities of the Dutch questionnaire across different groups by examining its structure, distribution and correlates. The ICU was administered to young clinical offenders (detained, N=127), healthy controls (community, N=172), non-clinical offenders (not detained, N=42) and an externalizing non-offender group (under treatment for behavioral problems, N=42). The age range for all groups was 13-20years. Since confirmatory factor analysis of models from earlier research did not yield an acceptable fit, exploratory factor analysis was conducted. Five factors were extracted: Lack of Conscience, Uncaring, Unemotional, Callousness and Lack of Empathy. The results indicated moderate to good test-retest stability and adequate internal consistency. CU traits correlated well with measures of conduct problems and aggression, indicating a good criterion and convergent validity. Results indicate weak associations with expert (Psychopathy Checklist: Youth Version, PCL:YV) and informant (Antisocial Process Screening Device, APSD) measures of psychopathic traits. Although groups could be differentiated on a statistical basis, no meaningful distinction based on CU traits alone was possible. Results of this study cast doubt on the validity of the current ICU. Suggestions are made for improvement.     

Criminal Recidivism Among Juvenile Offenders: Testing the Incremental and Predictive Validity of Three Measures of Psychopathic Features

We studied the predictive, comparative, and incremental validity of three measures of psychopathic features (Psychopathy Checklist: Youth Version [PCL:YV]; Antisocial Process Screening Device [APSD]; Childhood Psychopathy Scale [CPS]) vis-à-vis criminal recidivism among 83 delinquent youth within a truly prospective design. Bivariate and multivariate analyses (Cox proportional hazard analyses) showed that of the three measures, the CPS was most consistently related to most types of recidivism in comparison to the other measures. However, incremental validity analyses demonstrated that all of the predictive effects for the measures of psychopathic features disappeared after conceptually relevant covariates (i.e., substance use, conduct disorder, young age, past property crime) were included in multivariate predictive models. Implications for the limits of these measures in applied juvenile justice assessment are discussed.     

Psychopathic traits and offending trajectories from early adolescence to adulthood

Purpose

Measures of adolescent psychopathy have yet to be examined in offending trajectory studies. This may explain why identifying etiological differences between individuals following high-rate and moderate-rate offending trajectories has remained elusive. The current study used the Psychopathy Checklist: Youth Version (PCL:YV) to examine psychopathic traits and offending trajectories within a sample of incarcerated offenders.

Methods

Convictions were measured for Canadian male (n = 243) and female (n = 64) offenders at each year between ages 12 and 28. Semi-parametric group based modeling identified four unique trajectories: adolescence-limited (AL) (27.3% of sample), explosive-onset fast desister (EOFD) (30.6%), high-rate slow desister (HRSD) (14.6%), and high frequency chronic (HFC) (27.5%).

Findings

Both a three and a four factor model of psychopathy were tested, and both factor structures were positively and significantly associated with the HRSD and HFC trajectories. Regarding individual factors of psychopathy, the ‘Antisocial’ factor of the PCL:YV was the only individual dimension significantly associated with membership in high-rate compared to moderate-rate offending trajectories.

Conclusions

Psychopathic traits appear more commonly present amongst individuals who follow chronic versus moderate offending trajectories. Implications for early intervention and risk management of offenders are discussed.     

Examining Callous‐unemotional Traits and Anxiety in a Sample of Incarcerated Adolescent Females

Callous‐unemotional (CU) traits (e.g., lack of guilt and empathy) are a risk factor associated with antisocial behavior. Youth with CU traits can be differentiated by varying levels of co‐occurring anxiety. In this study, we examined CU variants in incarcerated adolescent females (n = 109) and their associations with emotional and behavioral problems and history of maltreatment. Semi‐structured interviews were also conducted with a subsample of the participants (n = 13). Participants with CU traits and anxiety had similar levels of conduct problems compared to individuals with high CU traits without anxiety, but they reported more childhood maltreatment (especially sexual abuse).     

Misremembering Events: Emotional Valence,Psychopathic Traits,and the Misinformation Effect

Past research has demonstrated increased susceptibility to misinformation under varying conditions, including negative emotional scenes. In addition, psychopathic traits have been associated with emotional deficits which may lead to differences in memory processing. The present study examined emotional valence and psychopathic traits in relation to the misinformation effect. Participants (n = 334) were exposed to emotional scenes (positive, neutral, negative), completed a measure of psychopathic traits (PPI-R), and were asked either misleading or nonleading questions. Accuracy and susceptibility to misinformation were assessed through a series of open-ended questions and accuracy scoring. Accuracy was highest for both emotional (60%) relative to neutral (53.9%) images. Memory differences in recall of negative versus positive scenes was evidenced dependent on attentional focus. Participants in the misled condition were less accurate in their recall overall, and recalled more misleading information (41.18% relative to 14.16%). In addition, individuals who received misleading suggestions were more likely to incorporate the major misleading detail into their memory for the negative scene. Psychopathic traits were not related to accuracy; however, those high in psychopathic traits tended to incorporate more misinformation into memory. Our results have important implications concerning how individuals remember emotional events, including people high in psychopathic traits, and follow up studies considering attention/motivation and misinformation are required.     

Development of the supernormality scale-revised and its relationship with psychopathy

Abstract:  The current research addresses the psychometric and diagnostic qualities of the Supernormality Scale-Revised (SS-R), a self-report measurement. Supernormality is defined as the tendency to systematically deny the presence of common symptoms (e.g., intrusive thoughts). In study 1, the SS-R was administered to forensic patients ( n  = 63), psychiatric patients ( n  = 26), honestly responding students ( n  = 26), and students instructed to fake supernormality ( n  = 20). Findings indicated good test–retest stability, and adequate internal consistency. Furthermore, the SS-R showed overall good predictive and convergent validity. Moreover, the diagnostic accuracy was excellent (sensitivity and specificity being 0.80 and 0.92, respectively). In study 2, 115 (healthy) controls and 32 forensic patients completed the SS-R and the Psychopathic Personality Inventory (PPI) ( J Pers Assess 1996; 66 :488), an instrument measuring psychopathy. Results showed again that the SS-R is a reliable and valid instrument. However, supernormality was not related to psychopathy as measured by the PPI.     

A brief measure of the triarchic model of psychopathy among community youths: psychometrics and measurement invariance

ABSTRACT

The development and validation of empirically sound measures that operationalize the Triarchic model of psychopathy among youth is currently in the nascent stage. The present study aimed to examine the psychometric properties of a brief refined measure of the Triarchic model of psychopathy based on the Youth Psychopathic Traits Inventory (YPI-Tri-S) among a mixed-gender school sample of 782 youth (M?=?15.87 years, SD?=?1.72) from Portugal. Confirmatory factor analysis offered support for the theoretically expected three-factor structure. Cross-gender measurement invariance using the present sample and cross-sample measurement invariance of the YPI-Tri-S using a previously collected forensic sample of institutionalized males was established. The YPI-Tri-S showed adequate psychometric properties in terms of discriminant validity, convergent validity, concurrent criterion-related validity, known-groups validity, and internal consistency. Findings indicate that YPI-Tri-S is a valuable brief and psychometrically reliable and valid self-report measure of the Triarchic model of psychopathy for use in diverse samples of youth.     

Psychopathic traits in Finnish homicide offenders with schizophrenia

There is a paucity of studies examining psychopathy in comparable samples of violent individuals with and without psychotic illness. The main goal of the study was to assess the prevalence and nature of psychopathic traits as measured by PCL-R among Finnish homicide offenders with schizophrenia. Further, the impact of co-morbid psychopathy on the homicidal incidents, as well as the associations of psychopathy and offender background factors, among offenders with schizophrenia was investigated.A retrospective study was performed using extensive forensic psychiatric evaluation reports and crime reports as sources of information. The sample consisted of 72 homicide offenders with schizophrenia and 72 controls without psychotic illness.Psychopathic features were prevalent among Finnish homicide offenders with schizophrenia, although for the most parts to a lesser extent compared to other homicide offenders. Like non-mentally ill psychopathic offenders, offenders with schizophrenia and many psychopathic traits are likely to present early starting problems in many areas of life and they also commit homicides that resemble other psychopathic offenders' in their choice of victims, intoxication and post-offense behavior.The observed prevalence of psychopathic traits highlights the importance of psychopathy assessment among violence-prone individuals with schizophrenia. In most respects, offenders with schizophrenia and high levels of psychopathic traits seem to be similar to psychopathic offenders without psychotic illness, which has implications for early intervention and management.     

The genetic origins of psychopathic personality traits in adult males and females: Results from an adoption-based study

Purpose

Research has consistently revealed that measures of psychopathy and psychopathic personality traits represent some of the most consistent predictors of violent criminal involvement. As a result, there has been a considerable amount of interest in trying to identify the various etiological factors related to psychopathy. The current study builds on this existing body of literature by examining the genetic foundations to psychopathic personality traits.

Methods

An adoption-based research design is used to estimate genetic effects on psychopathic personality traits. Adoptees are drawn from the National Longitudinal Study of Adolescent Health.

Results

Analyses revealed that having a biological criminal father was related to psychopathic personality traits for male adoptees, but not for female adoptees. For males, having a criminal biological father increased the odds of scoring in the extreme of the psychopathic personality trait scale by a factor ranging between 4.3 and 8.5. However, there was no association between having a biological criminal mother and psychopathic personality traits for adoptees.

Conclusions

Psychopathic personality traits are transmitted from father-to-offspring due to genetic reasons.     

Psychometric properties of the inventory of callous-unemotional traits short version (ICU-12) among detained female juvenile offenders and community youths*

The presence of callous-unemotional (CU) traits delineates a subgroup of male youth with severe conduct problems and antisocial behavior. To date however, existing research into these features among females is markedly limited. Drawing on 377 female adolescents (103 selected from forensic settings and 274 selected from school settings) from Portugal, the current study is the first to simultaneously examine the psychometric properties of the 12-item shortened version of the Inventory of Callous-Unemotional Traits (ICU-12) in incarcerated and community female youth. Results provide support for the construct validity and reliability of the ICU-12 among this unique sample. Findings from this study also reveal evidence of convergent and discriminant validity with a number of theoretically relevant constructs (e.g. psychopathic features, aggression, and substance use). Clinical implications for using the ICU-12 with females are discussed.     

Psychopathy and deception detection using indirect measures

Purpose. The goal of the current study was to examine psychopathy and indirect measures of deception detection. Methods. Undergraduate students (N=444) viewed video clips of adult male offenders telling true and false stories about crimes. For each story, participants rated indirect measures of deception (thinking hard, nervousness, emotional arousal, and attempting to control behaviour) and credibility. Participants also chose the story they believed to be true and rated the confidence in their decision. Offenders were rated on the psychopathy checklist – revised. Results. Consistent with past research, deception detection accuracy was at chance level and unrelated to confidence. Ratings on indirect measures by undergraduates did not distinguish true and false statements in offenders. Psychopathic offenders were less successful at deception than non‐psychopathic offenders. Psychopathic traits were associated with lower perceived credibility during deception and ratings of thinking harder while lying. Conclusions. The results suggest that indirect measures of deception detection may be less useful in offender samples. Further, the findings are consistent with the general inability of psychopathic offenders to demonstrate superior deception skills in empirical studies. Indirect measures of deception uniquely related to psychopathic traits offer new insight into the relationship between psychopathy and deception.