Race differences in antisocial behaviors and attitudes and early initiation of substance use.

This article examines racial differences in self-reported delinquency, school trouble, antisocial attitudes, and toughness and in teacher-rated aggressive and inattentive behaviors among fifth grade black, white, and Asian American subjects. Also examined are the relationships of these variables to substance initiation within each racial group. Controlling for socio-economic status, racial groups differed from one another in self-reported delinquency, school trouble and toughness, and in teacher-rated aggressiveness and inattention. Antisocial behavior and attitudes were stronger predictors of substance initiation for Asian American than for black and white children. For white children both self-reported and teacher-rated behavior were significantly related to substance initiation. For black children, only self-reported antisocial behavior, and for Asian American children only self-reported delinquent behavior and attitudes predicted substance initiation. Implications for prevention and research are discussed.     

Results of a pilot program for training bar staff in preventing aggression

One hundred and twenty-one staff from eight bars in Ontario, Canada participated in a three-hour training program that used a peer learning model to teach problem-solving skills regarding the prevention and management of aggressive behavior in bars. Participants showed significant positive changes in knowledge and attitudes regarding effective approaches to preventing aggression. The majority of participants reported that the training made them think about ways they handed problem situations and that they would change the way they handle problems in the future. Participants rated most aspects of the training as very useful, especially the group discussion. The program illustrates the potential for increasing skills and knowledge of bar staff in preventing aggression and associated injury.     

The state and my happiness: Youth mental health,citizenship education and discursive contestations in contemporary Indonesia

Complementing studies on youth mental health that were mainly depoliticised, this article offers a discursive examination of youth mental health in an Indonesian educational context. We argue that subject positions enabled by the discourse of mental health were at odds with dominant constructions of an ideal Indonesian citizen. Drawing upon qualitative data from 22 teachers and 20 students in a junior high school in Indonesia and analyses of educational policies and textbooks, we identified three discourses underpinning the ideal(ised) constructions of young Indonesian citizen, namely, neoliberalism, (masculine) patriotism and (religious) moralism and discussed how these inhibited youth mental health.     

Two-sample inference procedures under nonproportional hazards

We introduce a new two-sample inference procedure to assess the relative performance of two groups over time. Our model-free method does not assume proportional hazards, making it suitable for scenarios where nonproportional hazards may exist. Our procedure includes a diagnostic tau plot to identify changes in hazard timing and a formal inference procedure. The tau-based measures we develop are clinically meaningful and provide interpretable estimands to summarize the treatment effect over time. Our proposed statistic is a U-statistic and exhibits a martingale structure, allowing us to construct confidence intervals and perform hypothesis testing. Our approach is robust with respect to the censoring distribution. We also demonstrate how our method can be applied for sensitivity analysis in scenarios with missing tail information due to insufficient follow-up. Without censoring, Kendall's tau estimator we propose reduces to the Wilcoxon-Mann–Whitney statistic. We evaluate our method using simulations to compare its performance with the restricted mean survival time and log-rank statistics. We also apply our approach to data from several published oncology clinical trials where nonproportional hazards may exist.