Testing a Four-Factor Model of Psychopathy and Its Association With Ethnicity, Gender, Intelligence, and Violence

Operationalizing Psychopathy Through a Multi-Method Approach

We examined the operationalization of psychopathy through a multi-method framework in a community sample of 250 participants, who were oversampled for psychopathic traits. Psychopathy was operationalized through clinician-rated measures, including the Psychopathy Checklist: Screening Version and the Comprehensive Assessment of Psychopathic Personality (CAPP): Symptom Rating Scale, as well as the Triarchic Psychopathy Measure and the CAPP-Self Report. Using Exploratory Structural Equation Modeling and controlling for self-report and clinical rating method variances, a four-factor model of psychopathy emerged with factors representing Boldness, Disinhibition, Affective, and Interpersonal traits. We examined the validity of the four-factor model by investigating associations between each factor and conceptually relevant scales, and the results generally supported construct validity. The Interpersonal factor was considered to contribute to the model theoretically in the factor analysis, but the incremental validity of this factor above and beyond the Boldness and Affective factors was not supported by available criterion measures.

Sex as a moderator in the associations between psychopathy facets and aggressiveness

Introduction

Psychopathy reliably predicts aggression, making it valuable for violence prevention. However, research on sex differences within the 4-facet model, which includes affective, interpersonal, lifestyle, and antisocial facets of psychopathy, is limited, especially among high-risk community samples.

Methods

This study examined sex differences in the psychopathy facets associated with anger, hostility, and aggression among 419 (Mage = 32.6, 72% male) violently injured adults. Studying high-risk, non-institutionalized individuals offers unique insights into the link between psychopathy and aggression, particularly in real-word context where institutional influences are absent. Participants completed the Self-Report Psychopathy and Aggression Questionnaire.

Results

Hierarchical multiple regressions revealed that all four facets predicted physical and proactive aggression; affective, lifestyle, and antisocial facets were related to reactive aggression; and affective and lifestyle facets were related to anger, hostility, and verbal aggression. Sex moderated relations between psychopathy facets and anger and hostility. Specifically, the affective facet was associated with anger and hostility for males but not for females. The lifestyle facet was associated with anger and hostility for males and females, but the effect was stronger for females.

Discussion

The findings indicate that the four-facet model relates to aggressive emotions and cognition differently for males and females, while demonstrating consistency in physical and verbal aggression. Recognizing that psychopathic anger and hostility are sex-specific can improve violence interventions tailored to males and females.

Measurement Invariance and Convergent Validity of the Psychopathy Checklist: Screening Version (PCL:SV) Across New Zealand Māori and European Samples

The present study examined the psychometric properties of the Hare Psychopathy Checklist: Screening Version (PCL:SV; Hart et al., 1995) in a sample of 514 male offenders in New Zealand; 333 identifying as Māori and 181 as NZ European. Correlational analysis showed convergent validity between PCL:SV Total, Factor and Facet scores and subscales of two dynamic item-based instruments used to monitor and manage people in prison or post-custody, although these relationships were stronger among NZ European compared to Māori men. Multi-Group Confirmatory Factor Analyses (MGCFA) supported the 3-factor model of PCL psychopathy which demonstrated partial scalar invariance of PCL:SV scores across Māori and NZ European cohorts. These findings indicate that application of the PCL:SV, in line with the three-factor model, is empirically and clinically defensible practice with both Māori and NZ European clients under correctional care.

Prevalence and Correlates of Psychopathy in the General Population

Psychopathy encompasses a constellation of personality traits-including callousness, boldness, and disinhibition-associated with lifetime outcomes such as criminal activity, substance use, aggression, and other antisocial behaviors. However, psychopathy's relationship with these outcomes can vary depending on the sample tested, and no prior study has assessed outcomes related to psychopathy in a representative U.S. population sample. We thus assessed the relationship between psychopathy and relevant outcomes using the Triarchic Psychopathy Measure (TriPM) administered to a sample recruited to be demographically representative of American adults (N = 289). Results showed that TriPM psychopathy was normally distributed and associated with antisociality and criminal behavior. Unlike some prior results, we found that neither gender nor income moderated the relationship between psychopathy and criminal behavior. Disinhibition and boldness subscales, but not meanness, were associated with criminal behavior. These results underscore the importance of understanding psychopathy in the general population to improve public safety and health.

The relationship between psychopathic traits and executive functioning among incarcerated men

Individuals with high levels of psychopathic traits are often characterized by behaviors suggesting attenuated executive functioning (EF); however, the literature examining these two constructs have provided varied results. The current study sought to clarify the relationship between EF and psychopathic traits in a large sample of incarcerated men (n = 811). We utilized the Hare Psychopathy Checklist - Revised (PCL-R) and the Delis-Kaplan Executive Function System (D-KEFS) to measure psychopathic traits and EFs, respectively. D-KEFS subtests included Verbal Letter Fluency, Tower Test, Color-Word Interference Test (CWIT), and Proverbs. Regression results showed that PCL-R Factor 1 scores (measuring interpersonal and affective traits) were positively associated with verbal fluency, verbal abstraction, and verbal inhibition ability. In addition, PCL-R Facet 4 scores (measuring antisocial traits) were negatively associated with performance on inhibitory EF tasks. Our findings help further clarify the relationships between specific psychopathic traits and forms of EF, and provide potential avenues for specialized treatment or intervention approaches targeting specific psychopathic traits.

Psychopathic Personality as a Moderator of the Relationship Between Atypical Sexuality and Sexual Coercion Proclivity in the General Population

Being sexually coerced can have long-lasting psychological impacts on victims; with perpetration strongly predicted by elevated psychopathic traits. Owing to recent legislative developments in the United Kingdom that criminalize coercive control under the Domestic Abuse Act (2021), this study offers a timely investigation into the mechanisms of sexual coercion in domestic abuse across sexual abuse and coercive control. We used moderation analysis (n = 405) to investigate whether sexual coercion proclivity was predicted by facets of atypical sexuality (non-clinical elevated levels of sex drive, sexual sadism, and sexual masochism), and whether this relationship was moderated by psychopathic personality traits specifically the factor one components, which encompasses interpersonal and affective characteristics. Psychopathic personality traits significantly moderated the positive association between sex drive and sexual coercion proclivity, and between sexual sadism and sexual coercion proclivity in males (but not females), but psychopathic personality traits had no such moderating effect in the sexual masochism model. Results are discussed in terms of identifying risk factors of sexual coercion within a general population sample and international application. Open data and a preprint of this paper are available at [https://osf.io/xkcah/?view_only=134ff9c93ad24ba286515b348ce79c0c].

Association Between Traumatic Brain Injury and Psychopathic Traits Among Justice-Involved Adolescents

Traumatic brain injury (TBI) is a global public health problem and is highly prevalent among justice-involved populations. Pediatric TBI is linked with long-term negative outcomes and is correlated with substance use, criminal behavior, psychiatric disorders, and disruptions in neurocognition. These same TBI correlates are evident among youth with psychopathic traits. Given ongoing neurobiological and social development in adolescence, understanding the link between psychopathic traits and TBI in justice-involved youth is critical. A sample of 263 male adolescents were recruited from a maximum-security juvenile justice facility. Using a structural equation modeling (SEM) framework, measurement invariance of psychopathic traits (TBI ±) was tested, and psychopathy scores were accounted for in terms of TBI variables (severity, age of first TBI, total number), participant's age, IQ, substance use, and internalizing psychopathology. There was evidence of strong invariance across TBI status and those with TBI had higher affective and impulsive lifestyle psychopathic traits than adolescents without TBI. The SEM indicated that TBI severity was associated with lower IQ scores, which in turn were associated with increased lifestyle/antisocial (Factor 2) psychopathic traits. Total number of TBIs was associated with higher substance use, which was associated with both increased interpersonal/affective (Factor 1) and Factor 2 psychopathic traits. These TBI variables also had indirect associations with psychopathic traits through IQ and substance use. The findings indicate that TBI is associated with psychopathic traits and suggest that disturbances in cognition and substance use may be treatment targets for youth with TBI and psychopathic traits.

Psychopathic Traits in Adult versus Adolescent Males: Measurement Invariance across the PCL-R and PCL:YV

Both the Psychopathy Checklist-Revised (PCL-R) and the Psychopathy Checklist: Youth Version (PCL:YV), respectively, are established instruments for assessment of psychopathy and development of psychopathic propensity. To reliably compare scores from both instruments, measurement invariance must be established. The current study involved a combined sample of 1091 male participants (adults = 813; adolescents = 278) from correctional facilities in New Mexico. An exploratory structural equation modeling (ESEM) framework was used to test for measurement invariance. The four-factor ESEM model demonstrated good fit for the combined and individual samples. Results from the multiple group ESEM provide evidence for generally strong invariance, with equivalent factor loadings and thresholds. Adolescents exhibited decreased latent interpersonal traits but increased latent features on other PCL factors (affective, lifestyle, and antisocial) compared to adults. Findings suggest that the four-factor model and the measurement of psychopathic traits remain consistent across age groups. Implications of the findings within research and clinical contexts are discussed.

Proposed Specifiers for Conduct Disorder (PSCD) scale: A Latent Profile Analysis with At-Risk Adolescents

The Proposed Specifiers for Conduct Disorder (PSCD; Salekin in Pers Disord: Theory Res Treat 7:180-191, 2016) scale was designed to assess interrelated psychopathic trait domains in conjunction with symptoms of Conduct Disorder (CD) in children and adolescents (i.e., grandiose-manipulative, callous-unemotional, daring-impulsive). Variable-centered studies have provided support for a four-factor PSCD structure (Salekin et al. in Psychol Assess 34(10):985-992, 2022) in line with other adolescent and adult studies. The current person-centered study used latent profile analysis of the PSCD domains to examine whether theoretically meaningful and empirically robust PSCD subtypes emerged from a diverse sample (70.9% White, 20.1% Black, 3.6% Hispanic, and 5.4% other) of adolescents (modal age = 17) in a military style residential facility (N = 409; Males = 80.6%). As hypothesized, a four-class solution was best, consistent with adult psychopathy subtyping research (Hare et al. in Handbook of Psychopathy 39-79, 2018; Roy et al. in Pers Disord: Theory Res Treat, in press). The PSCD subtype profiles were uniform across sex and race/ethnicity. Adolescents evincing a psychopathic trait propensity profile (elevated on all four PSCD domains) displayed the greatest number of arrests and higher overall externalizing psychopathology, compared to the other three latent classes, as well as higher internalizing psychopathology compared to adolescents with general delinquency. The PSCD provides a sound measure of psychopathic trait propensities in youth and our results offer investigators and clinicians a means for understanding person-centered psychopathic traits versus antisocial profiles among at-risk adolescents. Taken together, the current results may offer a viable approach for examining specific treatment targets based on PSCD subtype profiles.

Disentangle psychopathic traits, self-construal and prosocial behaviours: A literature review

Psychopathy encompasses a constellation of personality traits, including interpersonal callousness, absence of remorse and guilt, and impulsivity. While extensive research has linked psychopathy to various antisocial behaviours, there has been a scarcity of studies investigating its association with prosocial behaviours, particularly within diverse sociocultural contexts. This comprehensive review explores recent literature that delves into the intricate interplay between psychopathy, prosocial behaviours, and self-construal. The current review reveals a complex and sometimes contradictory relationship between psychopathy and prosocial behaviours. The authors also examine the role of self-construal, a crucial sociocultural aspect, in relation to psychopathy and prosocial behaviours, and imply the intricate interplay between them. Amidst the review, the interactions between key constructs and sociocultural as well as contextual factors, including group identification and public awareness, are highlighted, and their potential role in modulating individuals' prosocial decision-making is discussed. At last, this review pinpointed notable research gaps: the potential moderating role of self-construal in the connection between psychopathy and prosocial behaviours, and a methodologically specific recommendation for future research is proposed. These findings consolidate the current evidence on psychopathy, self-construal and prosocial behaviours, and offer valuable insights into how sociocultural factors contribute to the heterogeneous expression of psychopathic traits, illuminating the directions for research on the development of culture-specific conceptualizations of psychopathy.

Validation of a structured questionnaire to assess the perception and satisfaction of respiratory therapy students toward career prospects and learning resources

BACKGROUND

Respiratory therapy is an emerging profession that has existed in India since 1995. Respiratory therapy students will play a significant role in strengthening various aspects of healthcare in the future. There are no validated instruments to evaluate students' perceptions of their careers and satisfaction with the learning resources. The primary objective of the current study is to develop and validate a structured questionnaire (SQ) for respiratory therapy students in India, encompassing all the components of their career development and satisfaction.

METHODS

Based on the literature review and content validity from respiratory therapy experts through multiple focused group discussions, a reliable SQ was generated with 40 items based on the Likert scale. After getting institutional ethics clearance and informed consent, the SQ was administered to 904 respiratory therapy students across the country. We performed principal component analysis (PCA), structural equation modeling, and confirmatory factor analysis (CFA) for the global fit. Cronbach's alpha was performed to estimate the internal consistency.

RESULTS

The PCA generated a 4-factor model, and internal consistency for the total scale exceeded the standard criterion of >0.70. Satisfactory goodness of fit data were yielded from CFA. Average variances extracted were higher than the correlation coefficients of the factors, which show sufficient discriminant validity.

CONCLUSION

This study shows a clinically acceptable model, it fits and suggests the possibility of applying a SQ to a respiratory therapy student with relatively good construct validity and internal consistency, based on the results of CFA.

Is it good to be bad? An evolutionary analysis of the adaptive potential of psychopathic traits

Although psychopathy is widely conceptualised as a mental disorder, some researchers question the maladaptive nature of psychopathy, and argue that it might be advantageous from an evolutionary point of view. According to this view, psychopathy can be seen as an evolutionary adaptative strategy that relies on deception and manipulation to gain short-term reproductive benefits. Psychopathy is also identified as a fast life strategy in response to early life stress and an adaptation to harsh environments. This paper investigates the evidence that psychopathic traits are adaptive, while also addressing the limitations of current evolutionary models of psychopathy based on frequency-dependent selection and life history theory. We review recent studies on the fitness correlates of psychopathy and find that psychopathic traits present potential adaptive trade-offs between fertility and mortality, and offspring quantity and quality. On a proximate level, individual differences in stress reactivity and environmental risk factors in early development predispose to psychopathy through gene-environment interactions. We propose that environmental, developmental, social and cultural factors can mediate the relationship between psychopathic traits and fitness and therefore should be considered to make accurate predictions on the adaptive potential of psychopathy. We end by outlining gaps in the literature and making recommendations for future evolutionary research on psychopathy.

Fluid Intelligence Moderates the Link Between Psychopathy and Aggression Differently for Men and Women

Research on sex differences in the association of psychopathy with fluid intelligence is limited, and it remains unknown if fluid intelligence plays a meaningful role in explaining the psychopathy-aggression link for men and women. The present study aimed to test for sex differences in the relation between the four-facet model of psychopathy and intelligence, and to assess whether fluid intelligence moderates the link between psychopathy and aggression. In a community sample of men (n = 356) and women (n = 196), we assessed psychopathy using the Psychopathy Checklist: Screening Version (PCL:SV), fluid intelligence using the Raven's Progressive Matrices, and types of aggression using the Aggression Questionnaire (AQ). Hierarchical regressions showed that the psychopathy lifestyle facet was negatively associated with intelligence and there were no sex differences. Our analyses for types of aggression revealed sex differences and similarities. For both men and women, total AQ scores were predicted by higher antisocial facet scores. Lower intelligence moderated the link between higher antisocial facet scores and aggression in men, but not for women. Physical aggression in women was associated with higher interpersonal, affective, and antisocial facet scores, whereas for men, it was only associated with higher antisocial facet scores. Verbal and indirect aggression were associated with higher intelligence in both men and women. For men only, higher antisocial facet scores were associated with verbal and indirect aggression. Higher intelligence moderated the link between the lifestyle facet and indirect aggression for women, whereas for men, it moderated the link between the affective facet and indirect aggression. This study further highlights sex differences in mechanisms of psychopathy-related aggression, which need to be considered in the development of violence interventions and risk assessment.

Patterns of psychopathology and cognition in sex chromosome aneuploidy

Background

Sex chromosome aneuploidies (SCAs) are a collectively common family of genetic disorders that increase the risk for neuropsychiatric and cognitive impairment. Beyond being important medical disorders in their own right, SCAs also offer a unique naturally occurring model for studying X- and Y-chromosome influences on the human brain. However, it remains unclear if (i) different SCAs are associated with different profiles of psychopathology and (ii) the notable interindividual variation in psychopathology is related to co-occurring variation in cognitive ability.

Methods

We examined scores for 11 dimensions of psychopathology [Child/Adult Behavior Checklist (CBCL)] and general cognitive ability [full-scale IQ (FSIQ) from Wechsler tests] in 110 youth with varying SCAs (XXY = 41, XYY = 22, XXX = 27, XXYY = 20) and 131 typically developing controls (XX = 59, XY = 72).

Results

All SCAs were associated with elevated CBCL scores across several dimensions of psychopathology (two-sample t tests comparing the euploidic and aneuploidic groups [all |T| > 9, and p < 0.001]). Social and attentional functioning were particularly sensitive to the carriage of a supernumerary Y-chromosome. In particular, the XYY group evidenced significantly more social problems than both extra-X groups (Cohen’s d effect size > 0.5, Bonferroni corrected p < .05). There was marked variability in CBCL scores within each SCA group, which generally correlated negatively with IQ, but most strongly so for social and attentional difficulties (standardized β, − 0.3). These correlations showed subtle differences as a function of the SCA group and CBCL scale.

Conclusions

There is domain-specific variation in psychopathology across SCA groups and domain-specific correlation between psychopathology and IQ within SCAs. These findings (i) help to tailor clinical assessment of this common and impactful family of genetic disorders and (ii) suggest that dosage abnormalities of X- and Y-linked genes impart somewhat distinct profiles of neuropsychiatric risk.

Supplementary Information

The online version contains supplementary material available at 10.1186/s11689-021-09407-9.

Physical Abuse Explains Sex Differences in the Link Between Psychopathy and Aggression

Psychopathy has long been associated with aggression. However, few studies have looked at differences between men and women. Studies that do exist demonstrate that psychopathy differentially relates to aggression in men and women and indicate that environmental factors may play a significant role in influencing these associations. A key environmental factor is a history of lifetime physical abuse (LPA), which has been linked to aggressive behavior in both men and women. The aim of the present study was to test if psychopathy differentially predicted physical, verbal, and indirect aggression in men and women, and if these associations were moderated by LPA. In a large community sample of men (n = 369) and women (n = 204), we assessed the 4-facet model of psychopathy (Interpersonal, Affective, Lifestyle, Antisocial) with the Psychopathy Checklist: Screening Version, LPA with the Addiction Severity Index, and self-report aggression with the Aggression Questionnaire. Results revealed sex differences and similarities. Physical aggression was associated with the affective facet of psychopathy in both men and women, though in different directions based on the moderating effects of LPA. Verbal aggression was associated with higher antisocial facet scores and LPA for men and not women. Finally, indirect aggression was associated with the antisocial facet of psychopathy for men, and the interpersonal facet for women, and these associations were not moderated by LPA. In women, low antisocial facet scores and no LPA were found to be protective for indirect aggression. These results show that LPA and psychopathy generally increase the risk of aggression, but the interaction between LPA and psychopathy differentiates the risk of aggression forms for men and women. These sex differences highlight the need for female-responsive interventions to target sex-specific risk factors for aggressive behavior.

The role of psychopathic traits, social anxiety and cortisol in social approach avoidance tendencies

Social anxiety and psychopathy have conceptually been linked to nearly opposite emotional, behavioral and endocrinological endophenotypes, representing social fearfulness and fearlessness, respectively. Although such a dimensional view has theoretical and practical implications, no study has directly compared social anxiety and psychopathy in terms of emotional experiences, relevant hormones (i.e. cortisol, testosterone) and behavioral tendencies (i.e. social approach-avoidance). Therefore, the present study examined 1) whether self-reported social anxiety and psychopathic traits are indeed anticorrelated, and 2) whether social anxiety, psychopathic traits, cortisol, testosterone and their interplay are differentially linked to social approach-avoidance tendencies. In a well-powered study, a sample of 196 healthy female participants, we assessed self-reported emotional and behavioral tendencies of social fear (i.e. social anxiety and social avoidance) and psychopathic traits (i.e. Factor I [interpersonal-affective deficit] and Factor II [impulsive behavior]). Furthermore, hormone levels were assessed, and approach-avoidance tendencies towards emotional (angry, happy) facial expressions were measured by means of a joystick reaction time task. Results confirmed that self-reported emotional tendencies of social anxiety and psychopathy Factor I (interpersonal-affective deficit) correlated negatively, but self-reported behavioral tendencies (social avoidance and psychopathy Factor II [impulsive behavior]) correlated positively. Furthermore, Structural Equation Modelling demonstrated that participants with higher social anxiety and higher cortisol levels showed an avoidance tendency towards happy faces, while participants with higher psychopathic traits showed an approach tendency towards angry faces. In sum, the notion that social anxiety and psychopathic traits are opposing ends of one dimension was supported only in terms of self-reported emotional experiences, but a comparable relationship with regard to behavioral and endocrinological aspects is debatable. The current findings stress the necessity to study emotional, endocrinological and behavioral factors in unison in order to better understand the shared and distinctive mechanisms of social anxiety and psychopathic traits.

Spanish Adaptation and Validation of the 34-Item Self-Report Psychopathy Scale (SRP)

The recent conceptualization of psychopathy as a dimensional construct has given rise to the need for validated instruments for use in nonclinical populations. The Self-Report Psychopathy Scale (SRP-III) is a questionnaire widely used to evaluate psychopathic traits in clinical and nonclinical samples in the English-speaking population. Using a community sample, the authors aimed to adapt and validate, to the Spanish language, the SRP-III based on the English short-form version by Mahmut, Menictas, Stevenson, and Homewood (2011). The SRP-III was administered to 1,938 participants. Confirmatory factor analysis demonstrated that the four-factor model satisfactorily fits the data. Internal consistency and test-retest reliability were adequate for the total score and its four facets. The SRP-III also showed good construct validity as measured through its relationship with personality, depression, empathy, machiavellianism, and narcissism. These results suggest that the Spanish version of the 34-item SRP-III is an adequate measurement of psychopathic traits.

Testing the Factor Structure of the Psychopathy Checklist: Screening Version (PCL:SV) in an Australian Violent Offender Population

Although psychopathy is a correlate of recidivism, including violent offending, the inclusion of antisocial behavior items in the Psychopathy Checklist (PCL) assessment instruments has been debated. Further, the latent factor structure underpinning the PCL measures has not been comprehensively validated in Australia. This study examined the construct validity of the PCL:SV in a sample of 192 Australian male violent offenders using structural equation modeling. The incremental validity of including the antisocial behavior items for predicting recidivism was also assessed. Approximately one-third of the sample had high scores on the PCL:SV. Construct analyses indicated strongest support for two distinct three-factor models of PCL psychopathy, with the established two- and four-factor models demonstrating poorer fit. The Antisocial factor improved predictive accuracy incrementally relative to the other three factors (Interpersonal, Affective, and Lifestyle). Area under the curve analyses revealed predictive accuracy for recidivism only for factors containing the antisocial behavior items. Findings contribute to the construct and predictive validity of the PCL measures and are discussed relative to contemporary forensic risk assessment practice.

Emotion Goals: A Missing Piece in Research on Psychopathy and Emotion Regulation

Psychopathy is associated with profound emotional disturbances. Yet little is known about associations between psychopathic traits and what individuals want to feel (i.e., emotion goals). Associations between psychopathy and emotion goals were investigated in two studies with nonclinical samples (N = 148 undergraduate students; N = 520 community sample). Four emotions often studied in psychopathy research were targeted: anger, fear, sadness, and joy. Furthermore, perceived utility and perceived pleasantness of emotions were assessed to investigate whether potential associations between psychopathy and emotion goals could be partly explained by instrumental or hedonic considerations, respectively. Psychopathic traits were positively related to negative emotion goals (primarily anger). Although joy was the most wanted emotion on average, psychopathy was negatively but less robustly related to the emotion goal of joy. Mediation analyses suggested differential motivational (hedonic and/or instrumental) mechanisms for different emotion goals. These findings provide preliminary evidence for motivated emotion regulation in psychopathy.

Psychopathy and Intimate Partner Violence

Several studies found that psychopathy is an important predictor of criminal behavior in general and of intimate partner violence in particular. However, these conclusions are often based on scales with less well-established validity, and some inconsistent results have emerged with regard to the contribution of specific psychopathic facets to intimate partner violence. In a sample of 152 batterers from Portugal aged between 22 and 70 years old, we examined whether Psychopathy Checklist-Revised (PCL-R) total scores and the four facets (scored based on a semistructured interview and on file information) predicted the frequency of intimate partner violence. Two separate linear regression analyses were conducted controlling for criminal variables. PCL-R total scores positively predicted intimate partner violence frequency, above and beyond the criminal variables. As for the four facets, only the PCL-R affective facet held a significant effect in predicting intimate partner violence frequency after controlling for criminal variables. These results support the inclusion of psychopathy in risk assessments and treatment of perpetrators of intimate partner violence, particularly with regard to the affective deficits of the construct.

Examining the Short Dark Tetrad (SD4) Across Models, Correlates, and Gender

To date, no studies have examined a range of structural models of the interpersonally aversive traits tapped by the Short Dark Tetrad (SD4; narcissism, Machiavellianism, psychopathy, sadism), in conjunction with their measurement invariance (males vs. females) and how the models each predict external correlates. Using a large sample of young adults (N = 3,975), four latent variable models were compared in terms of fit, measurement invariance, and prediction of intrapersonal and interpersonal functioning. The models tested were as follows: (Model A) confirmatory factor analytic, (Model B) bifactor, (Model C) exploratory structural equation model, and (Model D) a reduced-item confirmatory factor analytic that maximized item information. All models accounted for item covariance with good precision, although differed in incremental fit. Strong invariance held for all models, and each accounted similarly for the external correlates, highlighting differential predictive effects of the SD4 factors. The results provide support for four theoretically distinct but overlapping dark personality domains.

Psychopathic Expression From Early to Late Adulthood: An Item Response Theory Analysis of the Hare Psychopathy Checklist-Revised

Several investigators have assessed the Psychopathy Checklist-Revised (PCL-R) for invariance across offender ethnicities and in correctional and forensic-psychiatric contexts. Yet we do not know whether, or to what extent, item properties among male offenders vary throughout adulthood. With a combined sample of PCL-R data on offenders from Canada and the United States (N = 4,820), we measured item properties for offenders in age groups of Early (18-30 years old), Middle (31-49 years old), and Late (50+ years old) adulthood. Nine items showed differential item functioning across age group comparisons. Among the Early group, the PCL-R Interpersonal and Affective traits were most informative for measuring the latent trait of psychopathy. Among the Late group, the PCL-R Lifestyle and Antisocial items were most informative for the latent trait. These differences in item information illustrate how psychopathy manifests in male offenders throughout adulthood.

Reconsidering the role of sex hormones in psychopathy development: Estrogen and psychopathy among male justice-involved youth

Prominent theory suggests that factor one psychopathic traits may develop from increased input from hormones in the hypothalamic pituitary gonadal axis (HPG; i.e., testosterone) and decreased input from the hypothalamic pituitary adrenal axis (HPA; i.e., cortisol). Although there are extensive findings connecting low cortisol to psychopathy, less support has emerged for high levels of testosterone. This study examined whether incorporating the HPG hormone, estradiol, into this model would reveal relationships in line with theory: high levels of estradiol and testosterone in combination with low levels of cortisol would inform psychopathic traits. Baseline and reactive hormone levels were measured and compared to Psychopathy Checklist-Youth Version (PCL-YV) interviews among 66 male justice-involved youth (M age = 15.73) in a Southeastern juvenile detention center. The primary findings of this study were relationships between interacting HPA and HPG axis hormones with facet one and facet two psychopathic traits. Specifically, psychopathy total scores, interpersonal traits, and affective traits related to estradiol and testosterone reactivity, in that psychopathy scores were more likely with decreases in hormone reactivity (i.e., change in hormone level) following a stressor. Moreover, affective traits related to reactivity in all three hormones. These findings support inclusion of estradiol in neurobiological models of psychopathy and consideration of the individual components of psychopathy. This study adds to the growing body of research supporting interactions between variations in functioning of the HPA and HPG axes in relation to psychopathy.

Psychopathy and emotion dysregulation: More than meets the eye

Emotional dysfunctions have long been associated with psychopathy. Yet, the extent to which these dysfunctions include problems in emotion regulation (ER) has only recently become clearer. In this study, we first reviewed theoretical and empirical literature on psychopathy and ER, and then examined associations between ER and psychopathy in four diverse samples from two countries (MTurk, college, community, and offender samples from the United States and Italy; total N = 1940). We employed Structural Equation Modeling (SEM) to examine latent associations between ER and measures of psychopathy and the dark triad, respectively. Results revealed a consistent pattern of moderate associations between psychopathy and poorer ER. These patterns were replicated across samples and psychopathy assessment, and held when including Machiavellianism and narcissism in the models. Replicating and extending recent studies, these findings provide incremental evidence that the emotional dysfunctions associated with psychopathy include problems in ER. Thus, we contend that prevention efforts in the general community, as well as clinical risk assessment and treatment planning in clinical (forensic) populations should include an emphasis on ER, as it may represent an important factor explaining some of the maladaptive correlates of psychopathic personality.

EEG gamma activity to emotional movies in individuals with high traits of primary "successful" psychopathy

This study aimed to investigate emotional alterations in a community sample with primary psychopathic traits. Sixty males selected from a larger sample and divided in two groups, High (HP) and Low (LP) primary Psychopathy, watched 15 validated emotional movies divided in five categories (Erotic, Neutral, Fear, and the new Scenery and Compassion). Subjective responses and cortical activity in the EEG Gamma band (30-49 Hz) were recorded. Concerning self-reports, HP participants felt less anxious and anguished in response to Fear clips and less sad, touched and anguished by Compassion excerpts. Negative clips induced larger EEG Gamma activity in both groups compared to neutral and erotic movies, but Gamma activity to Fear movies was reduced in HP. This group showed also a small cortical response to positive Scenery movies, at the level of the Neutral ones. Source analysis showed in HP participants a reduced cortical activation to Fear in a large brain network, comprising the right prefrontal and temporal cortices and bilateral inferior parietal cortex. Results showed that primary psychopathy, in addition to the impaired response to Fear, was associated with a reduced response also to other specific categories of emotional stimuli, suggesting an altered affect on a broader scale.

The Gold Standard and the Pyrite Principle: Toward a Supplemental Frame of Reference

In medicine and social sciences, the phrase "gold standard" is often used to characterize an object or procedure described as unequivocally the best in its genre, against which all others should be compared. Examples of this usage are readily available in rigorously peer-reviewed publications, touted by test publishers, and appear in descriptions of methodologies by social science researchers. The phrase does not accurately describe commonly accepted measures, tests, and instruments. Instead, the descriptor can be ambiguous and misleading. This paper presents an overview of the history of the gold standard and its current applications to medicine and the social sciences. We question the use of the phrase "the gold standard" and suggest the additional operational use of a "pyrite principle" as a less presumptuous frame of reference. In thinking about validity and standards, the pyrite principle permits an understanding of standards as authoritative rather than fixed constructs in behavioral and health sciences.

Psychopathy and trauma: Exploring a potential association

This research presents a series of linked studies exploring the association between psychopathy and trauma. It comprises a systematic review (n = 58), followed by an expert Delphi (n = 19), and patient file trawl using a male forensic psychiatric patient sample (n = 66). An association between psychopathy and developmental trauma was predicted. It was further predicted that different types of trauma would be associated with different subtypes of psychopathy and that the severity of trauma would be important. The systematic review identified the following core themes: presence of Post-Traumatic Stress Disorder and/or symptoms; trauma type; trauma/abuse variables; and sex differences. The ensuing Delphi study indicated the specific variant of psychopathy to be important, with secondary psychopathy particularly relevant. The final study found that the severity of developmental trauma related differentially to primary and secondary psychopathy. Implications and directions for future research are discussed, most notably with regards to the conceptualisation of psychopathy.

Psychopathy Checklist: Youth Version psychometric properties in an Item Response Theory polytomous model

Abstract This study assessed the applicability of the Psychopathy Checklist: Youth Version in a sample of teenagers confined in socio-educational institutions. Using an Item Response Theory approach, item properties of this instrument were reviewed using the generalized partial credit model. Eight of the original twenty items of the original instrument were discarded due to low discrimination parameters. As expected, the most discriminating items in the assessment of psychiatric traits were those which affective characteristics are more typical in the description of psychopathic traits, and their larger variability among juveniles is reflected in the checklist’s answers. Item anchoring, in turn, determined five anchor levels. Conclusions based on the results are twofold: (a) a shorter version of this measure can offer the same level of information obtained from the full instrument and (b) the measure provides more information on average latent trait levels and is inadequate for clinical use.

Relationship between the Dark Triad and depressive symptoms

The Dark Triad (DT) is composed of three closely related personality traits: psychopathy, Machiavellianism and narcissism. These traits have been linked to emotional deficits. The aim of the present study was to analyze the relationship between the DT traits, including sub-dimensions, and depressive symptoms in order to identify those factors most strongly associated with the development of depression in individuals scoring high on DT. For these purposes, a total of 791 adults (M = 35.76 years; 24.91% males) completed a questionnaire battery including DT traits and depression measures. A positive significant correlation was found between psychopathy and Machiavellianism traits (total score and all sub-dimensions) and depressive symptoms. For narcissism, the direction of the correlation was dependent on the sub-dimension assessed. A model explaining 26.2% of the depressive symptoms scores was composed of the callous affect and criminal tendencies sub-dimensions of psychopathy, cynical view of human nature, which is a sub-dimension of Machiavellianism, and entitlement and self-sufficiency, which are sub-dimensions of narcissism. In addition, some of the relationships found between DT sub-dimensions and depressive symptoms appeared to depend on gender. Our results could have implications for detection and intervention programs aimed at decreasing the negative emotional consequences suffered by individuals with high DT scores. Limitations and future lines of research are discussed.

Personality Disorders as Emergent Interpersonal Syndromes: Psychopathic Personality as a Case Example

Personality disorders have long been bedeviled by a host of conceptual and methodological quandaries. Starting from the assumption that personality disorders are inherently interpersonal conditions that reflect folk concepts of social impairment, the authors contend that a subset of personality disorders, rather than traditional syndromes, are emergent interpersonal syndromes (EISs): interpersonally malignant configurations (statistical interactions) of distinct personality dimensions that may be only modestly, weakly, or even negatively correlated. Preliminary support for this perspective derives from a surprising source, namely, largely forgotten research on the intercorrelations among the subscales of select MMPI/MMPI-2 clinical scales. Using psychopathic personality as a case example, the authors offer provisional evidence for the EIS hypothesis from four lines of research and delineate its implications for personality disorder theory, research, and classification. Conceptualizing some personality disorders as EISs elucidates long-standing quandaries and controversies in the psychopathology literature and affords fruitful avenues for future investigation.

Sex differences on the four-facet model of psychopathy predict physical, verbal, and indirect aggression

Psychopathy is a multifaceted construct that has been linked to aggression. Yet, few studies have explored the association between physical, verbal, and indirect aggression using the 4-facet model of psychopathy in community samples, and to date, no studies exist that test for male and female differences. The present study aimed to understand what facets of psychopathy predict aggressive behavior for men and women, while controlling for important risk factors, such as Antisocial Personality Disorder (ASPD). Drawing from a large Bulgarian community sample (N = 565), a confirmatory factor analysis (CFA) supported the use of the 4-facet model of the Psychopathy Checklist: Screening Version (PCL:SV; Hart et al., ). Hierarchical linear regressions revealed that physical aggression was predicted by affective and antisocial psychopathic traits, and ASPD. Verbal aggression was predicted by the interpersonal facet, and indirect aggression was predicted by the antisocial psychopathy facet and ASPD. Sex significantly moderated the associations among facets of psychopathy and physical and indirect aggression. Specifically, the affective facet was positively associated with physical aggression only for women, whereas the antisocial facet was positively associated with indirect aggression only for men. Results suggest that the 4-facet model of psychopathy is sensitive to capture important similarities and differences between males and females when predicting forms of aggression in community samples. These findings underscore the importance of understanding how men and women differ in their risk-factors for aggressive behavior, which will better inform violence interventions based on sex-specific needs.

Resting Heart Rate and Psychopathy Revisited: Findings From the Add Health Survey

Despite the prior linkages of low resting heart rate to antisocial behavior broadly defined, less work has been done examining possible associations between heart rate to psychopathic traits. The small body of research on the topic that has been conducted so far seems to suggest an inverse relationship between the two constructs. A smaller number of studies has found the opposite result, however, and some of the previous studies have been limited by small sample sizes and unrepresentative samples. The current study attempts to help clarify the relationship between resting heart rate and psychopathic traits in a large, nationally representative sample (analytical N ranged from 14,173-14,220) using an alternative measure of psychopathic traits that is less focused on antisocial processes, and rooted in personality traits. No significant relationship between heart rate and psychopathic traits, or heart rate and a measure of cold-heartedness, was found. It is possible that previous findings of a link between heart rate and psychopathy have been driven by the inclusion of overt antisocial behavior in many traditional psychopathy measures. Further work is needed to confirm the associations (or lack thereof) between heart rate and the behavioral, affective, and personality trait aspects of psychopathy.

Psychopathic Personality Traits and the Successful Criminal

A significant body of literature links psychopathy and psychopathic personality traits with criminal behavior and involvement with the criminal justice system. However, very little research has examined whether psychopathic personality traits are related to being a successful criminal (e.g., evading detection). This study addresses this gap in the literature by examining whether psychopathic personality traits are associated with the likelihood of being processed by the criminal justice system (i.e., arrest). Our findings reveal that psychopathic personality traits are generally not associated with criminal success. Specifically, individuals with high levels of psychopathic personality traits commit more crimes and report more arrests, but they do not seem to have an advantage when it comes to avoiding arrest for the crimes they commit. We discuss the implications of these findings for the psychopathy literature.

Factor Structure and Construct Validity of the Levenson Self-Report Psychopathy Scale (LSRP): A Replication and Extension in Dutch Nonclinical Participants

The Levenson Self-Report Psychopathy (LSRP) scale is widely used to assess psychopathic traits in noninstitutionalized samples. Recent studies suggest that a three-factor structure measuring Egocentricity, Callousness, and Antisocial factors outperformed the original two-factor structure of the LSRP. This study replicated and extended these findings by examining the factor structure and construct validity of a Dutch version of the LSRP in a community sample (N = 856, subsamples ranging between 140 and 572 participants). Confirmatory factor analysis results corroborated the superiority of the three-factor model of the LSRP, using 19 of the 26 LSRP items. Limitations included the need to specify correlated residuals for some indicators, although these were largely in line with prior studies. Across three subsamples, we found evidence for construct validity of the LSRP subscales. Egocentricity and Antisocial showed a pattern of differential associations with external correlates in accordance with theoretical expectations. Callousness shared some correlates with Egocentricity, others with Antisocial, and uniquely predicted low morality and high physical aggression. Few exceptions to the hypothesized associations were observed, mostly concerning Callousness. Overall, the LSRP three-factor model received further support in a Dutch sample, and is thus recommended in future research, possibly adding items to improve the performance of the Callousness factor.

Structural analysis of the PCL-R and relationship to BIG FIVE personality traits and parenting characteristics in an Hispanic female offender sample

Valid measurement of psychopathic traits in females using the Psychopathy Checklist Revised (PCL-R) continues to be an under researched topic. Previous latent variable and other psychometric studies have raised questions concerning the structure and predictive effects of psychopathic traits in females. New cross-cultural research finds good support for a four-factor model of psychopathy in females and the predictive effects of the psychopathy factors (Declercq, Carter, & Neumann, 2015; Neumann, Hare, & Pardini, 2015). Nevertheless, additional research is needed on females, especially individuals from diverse cultural backgrounds. We investigated the factor structure and construct validity of the PCL-R in a female Hispanic sample (n = 155). Confirmatory factor analysis showed that the four-factor model provided an adequate fit. Furthermore, structural equation modelling revealed significant negative and positive predictive effects, respectively, between general personality (Agreeableness and Conscientiousness), and indifferent/abusive parenting with the broad syndrome of psychopathy.

On the Relation Between General Intelligence and Psychopathic Traits: An Examination of Inpatient Adolescents

A substantial literature has investigated relations between intelligence and psychopathic traits. At the construct level, findings have been mixed, with a small negative relation found. At the facet level however, a positive relation between verbal intelligence and the interpersonal facet of psychopathy, and a negative relation between verbal intelligence and the lifestyle factor of psychopathy emerge. To date, this research has largely neglected adolescents and prior research has focused on clinical and incarcerated populations, while failing to control for psychopathology. The current study sought to address these limitations by examining the relation between intelligence and psychopathy at the construct, facet, and trait level in a sample of inpatient adolescents. At the bivariate level, verbal intelligence was related to dishonest charm, unemotionality, impulsiveness, and manipulation. In regression analyses, however, verbal intelligence lost significance as a predictor of all but impulsiveness. Gender and severity of psychopathology accounted for most significant relations.

Using latent variable- and person-centered approaches to examine the role of psychopathic traits in sex offenders

The current study employed both latent variable- and person-centered approaches to examine psychopathic traits in a large sample of sex offenders (N = 958). The offenders, who had committed a range of sexual crimes, had been assessed with the Psychopathy Checklist-Revised (PCL-R; Hare, 2003). Structural equation modeling results indicated that the four-factor model of psychopathy (Hare, 2003; Neumann, Hare, & Newman, 2007) provided good representation of the dimensional nature of psychopathic traits across the sample of offenders, and that the PCL-R factors significantly predicted sexual crimes. In particular, the Affective and Antisocial psychopathy factors each predicted sexually violent crimes. Latent profile analysis results revealed evidence for a 4-class solution, with the subtypes showing distinct PCL-R facet profiles, consistent with previous research. The four subtypes were validated using sexual crime profiles. The prototypic psychopathy subtype (high on all 4 PCL-R facets) evidenced more violent sexual offenses than did the other subtypes. Taken together, the results demonstrate how variable- and person-centered approaches in combination can add to our understanding of the psychopathy construct and its correlates. (PsycINFO Database Record

Unmasking the Association between Psychopathic Traits and Adaptive Functioning in Children

The appearance of positive adjustment is a theoretically relevant element of psychopathy, and is valuable for demonstrating its incremental validity over a broader antisocial orientation. We examined associations between psychopathic-like features and two measures of adaptive functioning: psychometric intelligence and (immunity to) internalizing problems. Ratings of psychopathy and behavioral problems were obtained in a community sample of children (N=1210). A bifactor model was fit to the psychopathic personality items to capture the underlying variance common to all traits (i.e., general factor) and to isolate a unique cluster of interpersonal traits. We hypothesized that the general psychopathy factor and specific interpersonal factor would exhibit opposing patterns of associations with external criteria. As expected, the general psychopathy factor was associated with greater anxiety/depression and lower cognitive ability. Contrary to hypothesis, the interpersonal factor was not associated with adaptive functioning (i.e., reduced internal distress or superior cognitive ability), although the predicted relations emerged after controlling for antisocial behavior. Hence, in a large representative sample of children, there is limited support for the premise that psychopathic traits are associated with positive adjustment and enhanced intelligence. Implications regarding the construct validity of psychopathy are discussed, including the role of heterogeneity in sample characteristics and instrument.

Psychopathic features across development: Assessing longitudinal invariance among Caucasian and African American youths

OBJECTIVES

Psychopathy is associated with severe forms of antisocial and violent behavior in adults. There is also a rapidly growing body of research focused on extending features of adult psychopathy downward to youth. To date however, the degree to which these features can be consistently and comparatively assessed at these younger ages, remains unclear. This study addresses this issue by investigating measurement invariance of underlying features of psychopathy across childhood and adolescence in a racially diverse sample of youth.

METHODS

Three cohorts of youth (n =1517) were assessed annually from childhood to adolescence (ages ~7-16). Underlying features of psychopathy commonly assessed in youth (e.g. lack of guilt, impulsivity) were examined within a longitudinal bi-factor framework using multi-dimensional item-response theory (IRT) techniques. Differential item functioning was used to assess invariance across development and participant's race (African-American and Caucasian), using two distinct approaches: (1) traditional item-response theory (IRT) methods; and (2) a recently developed Bayesian structural equation modeling (BSEM) approach.

RESULTS

Psychopathy features assessed in this study exhibited measurement consistency across development (~ages 7-16) and were found to tap into the same underlying construct as intended across measurement occasions, and equivalently for African-American and Caucasian youth. Results were similar when assessed using traditional IRT procedures for longitudinal invariance testing and when implementing the more recent BSEM methodology.

CONCLUSIONS

Findings provide the first evidence that features of psychopathy can be assessed consistently in youth and improve our understanding of important developmental and sociocultural factors associated these features during earlier periods of development.

Comparing Different Approaches for Subtyping Children with Conduct Problems: Callous-Unemotional Traits Only Versus the Multidimensional Psychopathy Construct

The aim of this study was to compare two youth psychopathy models (i.e., callous-unemotional versus multidimensional model) in their ability to predict future and stable conduct problems (CP). At baseline, mothers and fathers of 321 boys and 369 girls (ages 7-12) completed measures that tap callous-unemotional and other psychopathic traits. Parent-reported CP was collected at baseline and at 6- and 12 month follow-ups. Children were assigned to mutually exclusive groups based on their levels of CP and psychopathic traits. Children with CP who manifested callous-unemotional traits (Callous-Unemotional + CP) were occasionally at risk for future and stable CP. Yet, across gender, children with CP scoring high on all psychopathic trait dimensions (Psychopathic Personality + CP) showed the most robust and highest risk for future and stable CP. Also, Callous-Unemotional + CP children, and children who were only high in CP, often were at similar risk for future CP. The findings suggest that the callous-unemotional model is less sufficient than the multidimensional model in predicting future and stable CP. This can be concluded for both boys and girls and calls for more research reconsidering the multidimensional nature of psychopathy for CP subtyping purposes.

Clarifying Associations between Psychopathy Facets and Personality Disorders among Offenders

PURPOSE

This study examined bivariate, unique, and multivariate associations between psychopathy facets and other Personality Disorders (PDs).

METHOD

76 incarcerated males were assessed with clinical interviews assessing psychopathy and DSM-5 PDs. Canonical Correlation Analysis (CCA) was used to examine multivariate associations between dimensional scores of psychopathy facets and other PDs.

RESULTS

Preliminary analyses of bivariate and partial associations revealed that much of the covariation between psychopathy and PD traits reflected shared variance among psychopathy facets and among PD traits. After controlling for the shared variance, unique relationships were limited to positive relationships between Narcissistic PD and interpersonal facet and between Paranoid PD and antisocial facet ratings. Canonical Correlation Analysis results yielded two pairs of functions that explained the shared variance between psychopathy and PDs. In the first pair of functions, elevations on the interpersonal and antisocial facets were associated with symptoms of Paranoid, Narcissistic, Histrionic, and Antisocial PDs. In the second pair of functions, high levels of the antisocial facet and low levels of the interpersonal facet were related to Borderline PD.

CONCLUSION

Results suggest that associations between psychopathy and DSM-5 PDs go beyond established links with Antisocial and Narcissistic PDs to include associations with Histrionic, Borderline, and Paranoid PDs.

More intelligent extraverts are more likely to deceive

The tendency to lie is a part of personality. But are personality traits the only factors that make some people lie more often than others? We propose that cognitive abilities have equal importance. People with higher cognitive abilities are better, and thus more effective liars. This might reinforce using lies to solve problems. Yet, there is no empirical research that shows this relationship in healthy adults. Here we present three studies in which the participants had free choice about their honesty. We related differences in cognitive abilities and personality to the odds of lying. Results show that personality and intelligence are both important. People low on agreeableness and intelligent extraverts are most likely to lie. This suggests that intelligence might mediate the relationship between personality traits and lying frequency. While personality traits set general behavioral tendencies, intelligence and environment set boundaries.