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This meta-analysis examines the effectiveness of interactive middle school-based drug prevention programs on adolescent cannabis use in North America, as well as program characteristics that could moderate these effects. Interactive programs, compared to more didactic, lecture style programs, involve participants in skill-building activities and focus on interaction among participants. A systematic literature search was conducted for English-language studies from January 1998 to March 2014. Studies included evaluations using random assignment or a quasi-experimental design of interactive school-based substance use prevention programs delivered to adolescents (aged 12–14) in North American middle schools (grades 6–8). Data were extracted using a coding protocol. The outcomes of interest were post-treatment cannabis use, intent to use, and refusal skills compared across intervention and control groups. Effect sizes (Cohen’s d) were calculated from continuous measures, and dichotomous measures were converted to the d index. A total of 30 studies yielding 23 independent samples were included. The random effects pooled effect size for cannabis use (k=21) was small (d̄=−0.07, p<0.01) and favorable for the prevention programs. The pooled effect sizes for intention to use (k=3) and refusal skills (k=3) were not significant. Moderator analyses indicated significant differences in program effectiveness between instructor types, with teachers found to be most effective (d̄ =−0.08, p=0.02). The findings provide further support for the use of interactive school-based programs to prevent cannabis use among middle school students in North America.

Released prisoners face high risk of early mortality. The risk of violent death, specifically homicide and suicide, are addressed in this study. Data on inmates released from the North Carolina Division of Adult Corrections (N = 476) matched to the Violent Death Reporting System are analyzed to estimate rates and demographic and criminal justice-related predictors. Violent death rates for persons released from prison were more than 7 times higher than for the general adult population. Results from multinomial logistic regression indicate decreased homicide risk for every year of age, whereas male gender and minority race increased risk. For suicide, minority race, release without supervision, and substance abuse treatment in prison decreased fatality risk. By contrast, a history of mental illness increased suicide risk. Implications for practice and research are discussed.

Research on rates of violent deaths in prison releasees exists, however little work has gone into examining their associated contexts and circumstances. Using North Carolina Department of Corrections and North Carolina Violent Death Reporting System data, the authors sought to understand the contexts surrounding the deaths of recently released inmates. Findings revealed that homicides (64% of deaths) were associated with violence as a result of argument and with criminal activity. Suicides (30%) were in response to risk of reincarceration, relationship problems, depression, and situational difficulties. Six percent of deaths were the result of legal intervention. Implications for social work practice and research are examined.

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