Exposure to violence predicts callous-unemotional traits and aggression in adolescence in the context of persistent ethnic-political conflict and violence.

According to social-cognitive ecological theory, violence exposure increases emotional factors-such as callous-unemotional (CU) traits-which then contribute to engagement in aggressive behavior. However, previous research has generally not tested this mediational pathway, particularly in the context of persistent ethnic-political violence exposure. The present study examined associations among violence exposure, CU traits, and aggression in a sample of 1051 youth in the Middle East (Palestine and Israel), using youth- and parent-reported data in a cohort-sequential design with three age cohorts (starting ages 8, 11, and 14 years) assessed over four waves spanning 6 years. Results from structural equation models with latent variables indicated that cumulative violence exposure in childhood and adolescence (measured annually for 3 years, and comprising exposure across multiple settings including political, community, family, and school) predicted later CU traits and aggression in adolescence and early adulthood, even after controlling for earlier levels of aggression and CU traits and demographic characteristics (child age and sex and parental socioeconomic status). Additionally, in mediation analyses, CU significantly mediated the association from earlier cumulative violence exposure to concurrent aggression, while aggression did not significantly mediate the association from earlier exposure to concurrent CU traits. The results of this study suggest that violence exposure leads to both aggressive behavior and a constellation of traits that place youth at greater risk for subsequent aggressive behavior, and that CU traits could partially explain the increased risk of aggression after violence exposure.

Depression, Loneliness, and Suicide Risk among Latino College Students: A Test of a Psychosocial Interaction Model.

This study tested a psychosocial model of suicide risk in a sample of 156 Latino college students. Specifically, depression and loneliness were hypothesized to be important predictors of suicide risk (namely, hopelessness and suicidal behaviors) in Latino students. Results of conducting regression analyses indicated that, independent of age and gender, depression and loneliness were significant predictors of both indices of suicide risk examined in the present study. It is noteworthy that within the psychosocial predictor set of depression and loneliness, depression was consistently found to be nearly twice as strong a predictor than was loneliness. Moreover, we found evidence for a significant depression-loneliness interaction effect in predicting suicide risk. That is, the highest level of suicide risk was found among dysphoric Latino students who were also socially isolated. Our findings indicate that depression and loneliness are important factors to consider in understanding suicide risk among Latino college students.