The structure of personality disorders: comparing the DSM-IV-TR Axis II classification with the five-factor model framework using structural equation modeling

Earlier factor analytical studies on the empirical validity of the DSM-IV-TR (American Psychological Association, 2000) Axis II classification have offered little support for the current three-cluster structure. In his large-scale meta-analysis of previously published personality disorder correlation matrices, O'Connor (2005) found four factors, corresponding to the neuroticism, extraversion, agreeableness, and conscientiousness domains of the five-factor model of personality. In the present study, this dimensional four-factor model and the categorical DSM three-cluster structure were fitted to the Assessment of DSM-IV Personality Disorders questionnaire (ADP-IV; Schotte & De Doncker, 1994) scale scores using structural equation modelling. The results strongly favored the dimensional model, which also resembled other well-founded four-factor proposals (Livesley, Jang, & Vernon, 1998; Widiger & Simonsen, 2005). Moreover, a multigroup confirmatory factor analysis showed that this model was highly invariant and thus generalizable across two large clinical (n = 1,029) and general population (n = 659) samples.     

Off Belay! The Morality of Free-soloing*

In this paper, we use qualitative and quantitative research, along with reference to current philosophical literature to consider the question of whether the sport of free-soloing is inherently immoral given the unavoidable extreme risk taken by the climber and imposed upon others not directly participating in the sport. The first thing we look at is what kind of values climbers see in free-soloing and show, through interviews we conducted with soloers and through a review of the literature on the philosophy of extreme sports, that climbers derive what might be called ‘higher pleasures’ from free-soloing. We then argue that despite its inherent riskiness, free-soloers ought to be allowed the autonomy and freedom to choose to engage in the sport, provided they are doing so in a conscientious manner. To show that they are, we again appeal to interviews we conducted to demonstrate that soloers decide to attempt a free-solo in a thoughtful manner, as prescribed by philosophers who work on the morality of decision-making under uncertainty. We finally use data that we collected through quantitative research to show that free-soloing does not make those athletes who participate in the sport into risk-taking personalities. Thus, we conclude that the sport of free-soloing is not inherently immoral.     

Kindred spirits? The benefits of egocentrism in close relationships

The authors argue that people are happiest in their relationships when they believe they have found a kindred spirit, someone who understands them and shares their experiences. As reality may not always be that accommodating, however, intimates may find this sense of confidence by egocentrically assuming that their partners are mirrors of themselves. Both members of dating and married couples completed measures of satisfaction and felt understanding. They also described their own and their partners' traits, values, and day-to-day feelings. The results revealed that people in satisfying and stable relationships assimilated their partners to themselves, perceiving similarities that were not evident in reality. Such egocentrism predicted greater feelings of being understood, and feeling understood mediated the link between egocentrism and satisfaction in marriage.     

Validity and structure of a self-report measure of youth psychopathy

An interest in early identification of youth who may be at risk of psychopathy has generated measures for age-appropriate screening and assessment. This study examines the structural, concurrent, and divergent validity of the Psychopathy Content Scale, a 20-item self-report instrument derived from the Millon Adolescent Clinical Inventory (MACI). Data for 481 youths who had taken the MACI, the Child Behavior Checklist Youth Self-Report (YSR), and the Massachusetts Youth Screening Instrument, Second Version (MAYSI-2), were analyzed. Results showed that the PCS is best described by a two-factor model and that analyses of the two factors offer limited support for convergent and divergent validity. High scores on both factors were associated with high YSR and MAYSI-2 scales, suggesting that the measure identified youth who were distressed on several measures of emotional, psychological, and behavioral disorder.     

Subtypes of adolescent offenders: affective traits and antisocial behavior patterns

Etiological models of life-course persistent offending often emphasize behavioral explanations. Suggestions that persistent offenders have psychopathy ignore the distinct non-behavioral features of the psychopathy disorder. Using a three-factor model of the PCL-YV and cluster analysis with 259 incarcerated adolescents, we identified four distinct juvenile subtypes on the basis of affective, interpersonal, and behavioral dimensions. Prospective and retrospective comparisons of antisocial behavior patterns found the cluster comprising all three psychopathy dimensions to be the most chronic and severe. Impulsive features alone were strongly associated with severe antisocial behaviors retrospectively, but not prospectively. Findings rebut the proposal that disruptive behavioral and impulsive symptoms can identify "fledgling psychopaths." Assessments that disregard callous-unemotional traits will likely result in high false positive rates among serious adolescent offenders. Implications for developmental models of chronic offending are discussed in light of the need for further follow-up into adulthood.     

Does having a pet make a difference? Highlights from the HBSC Portuguese study

Pets are part of many adolescent’s lives. Objectives: To identify in a large national representative sample of Portuguese adolescents (HSBC study), the percentage of adolescents that have pets, what kind of feelings pets provide, differences by gender and age (through school grades) and to verify whether adolescent health, well-being, life satisfaction and psychological symptoms are associated with having a pet. Methods: The 2014 study provided national data of 6026 Portuguese adolescents (52.3% of which were girls), whose mean age was 13.8 years, randomly selected from those attending 6th, 8th and 10th grades. Measures included asking the participant if he/she had pets, which pet was, and the relationship they had with the pet, ISS, perception of well-being, life satisfaction and psychological symptoms. Results: The large majority of Portuguese adolescents had a pet. Adolescents who referred having a pet reported more frequently having dogs and cats. As for positive feelings related to pets, results showed that pets give them feelings of happiness, companionship, nurturing, tranquility, security and responsibility always/almost always, especially in girls and younger boys. The results also showed that having a dog was associated with a higher socio-economic status, better perception of well-being, more life satisfaction and less psychological symptoms. Conclusion: Since research shows that young people who have pets report higher rates of well-being/health perception, that information should be used to conduct more studies and change policies in ways that benefit adults and children.     

Callous-Unemotional Traits Modulate Brain Drug Craving Response in High-Risk Young Offenders

Adults with psychopathy have a high propensity for substance abuse, generally starting from a young age. This investigation tested hypotheses about differences in the neural responses associated with drug craving among high-risk young offenders with histories of abuse of stimulants and other drugs as a function of psychopathic traits. Fifty-four male adolescents (44 with a history of stimulant abuse and 10 controls) incarcerated at a maximum-security facility (M age = 17.08 years) completed a drug-cue exposure task while brain hemodynamic activity was monitored using functional magnetic resonance imaging (fMRI) with a mobile MRI scanner stationed at the facility. Psychopathic traits were assessed using the Hare Psychopathy Checklist: Youth Version (PCL:YV). In the stimulant abuser group, drug cues elicited activity in classic reward circuitry. Consistent with studies of adult psychopathic traits and substance abuse, there was a negative association between PCL-YV scores and hemodynamic response related to drug craving in the amygdala and ACC in youth with a history of stimulant abuse. However, there were considerably more negative associations between the PCL:YV and hemodynamic response among youth than adults and this was primarily due to callous-unemotional traits rather than interpersonal or behavioral traits. The implications for how personality traits modulate motivations for drug-seeking behavior among adolescent offenders are discussed.     

Can We Use Social Policy to Enhance Compliance with Moral Obligations to Animals?

Those who wish to abolish or restrict the use of non-human animals in so-called factory farming and/or experimentation often argue that these animal use practices are incommensurate with animals’ moral status. If sound, these arguments would establish that, as a matter of ethics or justice, we should voluntarily abstain from the immoral animal use practices in question. But these arguments can’t and shouldn’t be taken to establish a related conclusion: that the moral status of animals justifies political intervention to disallow or significantly diminish factory farming and animal experimentation. In this paper, we set out to do two things: First, we argue that while the arguments mentioned above may establish the moral impermissibility or injustice of the practices they condemn, they are not sufficient to justify political interventions or social policies to abolish or restrict such practices. It is one thing to argue that some moral imperative or imperative of justice exists, and quite another thing to call for the use of political power to induce compliance with that imperative. Our second task is to assess the prospects for developing an argument that is sufficient to justify political interventions to restrict or abolish the use of non-human animals in factory farming or experimentation. Beyond establishing the immorality or injustice of animal consumption or experimentation, one must show that the interventions in question constitute legitimate use of political power. Would prohibiting or discouraging animal use be legitimate? We attempt to answer this question within the context of fundamental liberal constraints on the legitimate use of coercive political power.     

Philosophy in Schools: Can Early Exposure Help Solve Philosophy's Gender Problem?

In this article, I explore a new reason in favor of precollegiate philosophy: It could help narrow the persistent gender disparity within the discipline. I catalog some of the most widely endorsed explanations for the underrepresentation of women in philosophy and argue that, on each hypothesized explanation, precollegiate philosophy instruction could help improve our discipline's gender balance. Explanations I consider include stereotype threat, gendered philosophical intuitions, inhospitable disciplinary environment, lack of same‐sex role models for women students in philosophy, and conflicting “schemas” for philosophy and femininity. I argue that, insofar as some combination of these hypothesized explanations accounts for some portion of the underrepresentation of women in philosophy, those of us concerned to make things better have reason to participate in and promote efforts to share philosophy with younger students.