Person-Environment Fit, Substance Use Attitudes, and Early Adolescent Substance Use.

BACKGROUND: Adolescent substance use is a national health concern. While the literature is clear on the prevalence of substance use during the adolescent developmental period, a dearth of literature is available on the developmental contexts, particularly the influence of school factors, in which substance use occurs. OBJECTIVES: This study examined the intermediary role of substance use attitudes on the relationship between school racial composition and alcohol and marijuana use in a sample of sixth to eighth graders. METHODS: The sample consisted of 4228 middle school students (89% White; 53% female) in the Midwest. A moderated mediation analysis was conducted on the relationship between school racial composition, substance use attitudes, and substance use, with race as the moderator. RESULTS: Results indicated a significant relationship between the percentage of White or Black students in a school and alcohol or marijuana use and that this relationship was mediated by substance use attitudes. These relationships did not differ significantly by student race. Conclusions/Importance: Preliminary findings indicate the importance of considering school racial composition as a systems level risk or promotive factor for attitudes toward substance use as well as substance use outcomes.

The Indirect Effect of Ethnic Identity on Marijuana Use Through School Engagement: An African American High School Sample.

BACKGROUND: African American marijuana use is associated with many negative social, emotional, and health-related consequences. Of significance, over recent years this population has shown an increase in use. In the literature, ethnic identity and school engagement are prominent protective factors against substance use. OBJECTIVE: This study will examine how these protective factors are related, specifically whether ethnic identity mitigates risk through school engagement to reduce marijuana use. METHOD: A path analysis was conducted with 437 African American high school students (41% male) from Midwestern schools to examine the role of school engagement in the relationship between ethnic identity and marijuana use. RESULTS: The results revealed that students high in ethnic identity have higher school engagement, which lessens their frequency of marijuana use. Therefore, ethnic identity reduces marijuana use by increasing student's school engagement. Conclusions/Importance: The results offer a clearer picture of how ethnic identity and school engagement protect against marijuana use. The results also present insight into how to protect students who are low in ethnic identity.

The effect of impulsivity and drinking motives on alcohol outcomes in college students: a 3-year longitudinal analysis.

Objective: Substance use is a public health concern and cross-sectional studies have found that impulsivity and drinking motives influence substance use in emerging adults. Despite these findings, longitudinal studies with nuanced measures of impulsivity and drinking motives are needed. Participants: The current study investigated the three-year relationship between impulsivity-related traits, drinking motives, sex, and drinking outcomes in a sample of 509 college students (47.47% male; 81% White). Methods: The effects of impulsivity traits and drinking motives on problematic drinking outcomes were evaluated using linear mixed effects models. Results: The results confirmed the hypothesized relationship between traits of impulsivity, drinking motives, and alcohol outcomes over time. Further, sex significantly interacted with drinking motives longitudinally in its relationship with alcohol use outcomes. Conclusions: These results indicate that intervention efforts may need to be tailored to specific individual attributes to target direct correlates of alcohol use behavior to increase effectiveness.

The efficacy of the Strength, Hope and Resourcefulness Program for people with Parkinson's disease (SHARP-PWP): A mixed methods study.

INTRODUCTION: Treatment of PD focuses on improving symptoms and quality of life, yet research has not examined interventions aimed at promoting hope in patients. This study examined the effects of a Strength, Hope, and Resources Program for People with PD (SHARP-PWP), based on the principles of positive psychology. METHODS: A mixed method design examined the effects of a randomized, waitlist-controlled trial of SHARP-PWP. 31 PD patients diagnosed in the last 5 years (average age = 66; 13 men, 18 women) participated in a 6-session program. All participants completed self-report measures at pre-treatment, post-treatment, and 6-week follow-up. Data were analyzed using ANOVA. After the program, 15 participants completed a semi-structured interview. Qualitative interview data were analyzed using Interpretive Description. RESULTS: No significant differences in improvement were found between the Immediate and Delayed intervention groups. However, significant effects for time (i.e., pre-treatment to post-treatment) were found for health-related quality of life and well-being in both Immediate and Delayed conditions. Additional quantitative analysis revealed significant improvement in both groups on hope from pre-treatment to follow-up. Qualitative findings revealed that clients identified social, emotional, behavioral and cognitive changes experienced in the group. CONCLUSIONS: Participating in positive psychology research improved health-related quality of life (HrQoL) and mental health and patients identified additional benefits at 6-week follow-up. Our results provide insight about the placebo effect and Hawthorne pre-placebo effects in the context of PD research. The findings can inform trial design and clinical care of patients with PD.