Triarchic dimensions of psychopathy in young adulthood: Associations with clinical and physiological measures after accounting for adolescent psychopathic traits.

This study examined associations of psychopathy facets of boldness, meanness, and disinhibition with clinically relevant variables and physiological reactivity to affective stimuli. These associations were examined after accounting for developmental associations with adolescent psychopathic traits, namely callous-unemotional traits, narcissism, and impulsivity. Psychopathic traits were assessed during adolescence using the Antisocial Process Screening Device and the Inventory of Callous Unemotional traits and during young adulthood via the Triarchic Psychopathy Measure.

Stability and change in callous-unemotional traits: Longitudinal associations with potential individual and contextual risk and protective factors.

This longitudinal study examines developmental heterogeneity in callous-unemotional (CU) traits in a large sample of school-age children in Cyprus. Latent Class Growth Analysis revealed 4 trajectory groups of CU traits across 3 time points: stable high, increasing, decreasing, and low. Findings suggested that children in the stable high CU trajectory were more likely to (a) exhibit high and stable levels of conduct problems, attention-deficit/hyperactivity disorder symptoms, impulsivity and narcissism, (b) experience low parental involvement and high parental distress, (c) report low peer support and school connectedness, and (d) score lower on academic performance, executive functioning, social competence, and self-regulation compared to children with low, decreasing, and increasing CU traits.