ABSTRACT. Objective: The purpose of this study was to conduct a meta-analysis summarizing the effectiveness of brief, single-session interventions to reduce alcohol use among heavy drinking college students. Method: A comprehensive literature search identified 73 studies comparing the effects of single-session brief alcohol intervention with treatment-as-usual or no-treatment control conditions on alcohol use among heavy drinking college students. Random-effects meta-analyses with robust variance estimates were used to synthesize 662 effect sizes, estimating the average overall effect of the interventions and the variability in effects across a range of moderators. Results: An overall mean effect size of g\ = 0.18, 95% CI [0.12, 0.24] indicated that, on average, single-session brief alcohol interventions significantly reduced alcohol use among heavy drinking college students relative to comparison conditions. There was minimal variability in effects associated with study method and quality, general study characteristics, participant demographics, or outcome measure type. However, studies using motivational enhancement therapy/motivational interviewing (MET/MI) modalities reported larger effects than those using psychoeducational therapy (PET) interventions. Further investigation revealed that studies using MET/ MI and feedback-only interventions, but not those using cognitive-behavioral therapy or PET modalities, reported average effect sizes that differed significantly from zero. There was also evidence that long-term effects were weaker than short-term effects. Conclusions: Single-session brief alcohol interventions show modest effects for reducing alcohol consumption among heavy drinking college students and may be particularly effective when they incorporate MET/MI principles. More research is needed to directly compare intervention modalities, to develop more potent interventions, and to explore the persistence of long-term effects. (J. Stud. Alcohol Drugs, 76, 530-543, 2015)

Young children often learn less from video than face‐to‐face presentations. Meta‐regression models were used to examine the average size of this difference (video deficit) and investigate moderators. An average deficit of about half of a standard deviation was reported across 122 independent effect sizes from 59 reports, involving children ages 0–6 years. Moderator analyses suggested (a) the deficit decreased with age, (b) object retrieval studies showed larger deficits than other domains, and (c) there was no difference between studies using live versus prerecorded video. Results are consistent with a multiple‐mechanism explanation for the deficit. However, the analyses highlighted potential quality and publication bias issues that may have resulted in overestimation of the effect and should be addressed by future researchers.

To advance research evaluating the relationship between social information processing (Crick & Dodge) and youth aggression, this meta‐analytic study examined associations between social goals and aggression in children in 21 separate research reports. Eligible studies provided descriptive or preintervention measurement of children's aggression and social goals, and were reported in English by March 1, 2010. Findings from two random‐effects meta‐analyses utilizing clustered data analysis techniques (i.e., effect sizes nested within samples) supported an expected (1) negative association between prosocial goals and aggression, and (2) positive association between antisocial goals and aggression. Little heterogeneity in these associations was observed across studies, and no moderating variables were revealed. The findings extend existing meta‐analytic research on social information processing and aggression to include social goals as meaningful correlates of youth aggression.

The present study compared indigenous South African versus African-American schoolchildren's beliefs about aggression. Eighty 7-9 year olds (40 from each country) participated in interviews in which they were asked to make inferences about the stability, malleability, and causal origins of aggressive behaviour. Although a minority of participants from both countries endorsed essentialist beliefs about aggression, South African children were more likely than American children to do so. Results also revealed some degree of coherence in children's patterns of beliefs about aggression, such that children responded across superficially different measures in ways that appear theoretically consistent. The authors consider these findings in light of debates concerning the role of cultural forces in shaping person perception.

Hostile attribution bias (HAB) has been shown to predict aggressive behavior, especially toward peers. The current study examined whether HAB is also related to conflict with teachers, an important predictor of academic and social success in school‐aged children. A total of 282 second to fourth grade boys in 74 classrooms completed a self‐report measure of HAB toward teachers, while their teachers assessed conflict in the teacher–student relationship. Results supported the presence of a positive relationship between HAB toward teachers and conflict with teachers. These findings suggest that HAB toward teachers may be an indicator of difficulties and, pending further research, a potential avenue for intervention to improve teacher–student relationships.