School-Level Longitudinal Predictors of Alcohol, Cigarette, and Marijuana Use

Area of Science:

• Public Health
• Adolescent Psychology
• Sociology

Background:

• Adolescent substance use remains a significant public health concern.
• Understanding school-level factors influencing substance use is crucial for targeted interventions.

Purpose of the Study:

• To identify key school-level predictors of adolescent alcohol, binge drinking, smoking, and marijuana use.
• To examine the relationship between school culture and subsequent substance use prevalence.

Main Methods:

• Longitudinal analysis of 6th-12th grade student data (2011-2015).
• Regression models predicting school-level prevalence based on prior year's school-wide prevalence, perceived ease of access, adult/peer disapproval, and peer norms.

Main Results:

• In middle schools, prior prevalence and perceived norms predicted future use.
• In high schools, prior prevalence, peer norms, and perceived ease of access were significant predictors.
• School-wide prevalence of substance use is predictable by school-level factors.

Conclusions:

• School culture, including peer norms and perceived access, plays a predictive role in adolescent substance use.
• Interventions targeting school environments may effectively reduce substance use among students.
• Findings highlight the importance of social norms and environmental factors in adolescent substance use behaviors.