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Direct And Indirect Effects Of Injunctive Norms On Marijuana Use: The Role Of Reference Groups, Joseph W. Labrie, Justin F. Hummer, Andrew Lac, Christine M. Lee

Psychological Science Faculty Works

Objective: Little work has evaluated the relationship between injunctive norms and marijuana use. This study sought to establish whether misperceptions exist between perceived injunctive norms of typical college students and the actual approval level of the students. We also examined respondents’ perceptions of which groups (typical student, close friends, and parents) were the most and least approving of marijuana. These variables were then applied to an explanatory model to assess their relationships with marijuana use.

Method: Participants were 3,753 students (61% female) randomly recruited from two West Coast campuses. Participants were asked about their own marijuana use and their own …

Alcohol-Related Information In Multi-Component Interventions And College Students' Drinking Behavior, Vandana Thadani, Karen Huchting, Joseph Labrie

Psychological Science Faculty Works

Education-only interventions produce little change in drinking behaviors; but, multi-component prevention programs, which include alcohol information as one feature, can decrease drinking. This study examined the role of alcohol knowledge in a multi-component intervention previously found to reduce first-year female college students' alcohol consumption. Intervention and control group students completed pre and postintervention assessments of drinking behaviors, and a postintervention assessment of alcohol-knowledge. Intervention students outperformed control students on the measure of alcohol knowledge. However knowledge did not predict drinking outcomes for this group, and it was positively correlated with drinkingbehaviors for control students. The findings suggest that, although learning …

Effects Of Onset Density In Preschool Children: Implications For Development Of Phonological Awareness And Phonological Representation, Judith G. Foy, Virginia A. Mann

Psychological Science Faculty Works

Neighborhood density influences adult performance on several worked processing tasks. Some studies show age-related effects of density on children's performance, reflecting a developmental restructuring of the mental lexicon from holistic into segmental representations that may play a role in phonological awareness. To further investigate density effects and their implications for development of phonological awareness, we compared performance on dense and sparse onset words. We adapted these materials to three phonological awareness tests that were pretested on adults then administered to preschool children who were expected to vary in phonological awareness skills. For both the adults and the children who passed …

Mental And Social Health Impacts The Use Of Protective Behavioral Strategies In Reducing Risky Drinking And Alcohol Consequences, Joseph W. Labrie, Shannon R. Kenney, Andrew Lac, Jonathan A. Garcia, Paul Ferraiolo

Psychological Science Faculty Works

The present study is the first to examine the moderating effects of mental and social health status in the relationship between protective behavioral strategies utilized to reduce high risk drinking (e.g., alternating alcoholic and nonalcoholic drinks or avoiding drinking games) and alcohol outcomes (drinking variables and alcohol-related negative consequences) among first-year college females (N = 128). Findings revealed that protective behaviors were particularly effective in reducing both alcohol consumption and related risks among participants reporting lower mental health as compared to higher mental health. Further, participants with higher social health who utilized protective behaviors consumed significantly fewer maximum drinks per …

Normative Misperceptions And Marijuana Use Among Male And Female College Athletes, Joseph W. Labrie, Joel R. Grossbard, Justin F. Hummer

Psychological Science Faculty Works

This research assessed the frequency of marijuana use and perceptions of gender-specific marijuana use among intercollegiate athletes from two National Collegiate Athletic Association (NCAA) Division 1 universities. Normative data were gathered in a live setting. Male athletes reported significantly greater marijuana use than female athletes and the overall sample reported higher prevalence of use than national averages for college athletes and non-athletes. Gender-specific perceptions among male and female athletes exceeded actual self-reported use, and perceived marijuana use among male athletes was strongly associated with personal use. The findings demonstrate the salience of group-specific marijuana norms and present implications for normative …