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Abstract
Objective: We considered the utility of National College Health Assessment (NCHA) data relative to other national data for studying college students’ cannabis use and binge drinking, and drug policy effects. Participants: Survey data on 18–22-year old college students were drawn from the 2008–2018 NCHA, National Survey on Drug Use and Health (NSDUH), Monitoring the Future (MTF), and Healthy Minds Study (HMS). Methods: Prevalence estimates were compared across data sources in terms of level and change from 2008–2018 using linear regressions, separately for men and women. Results: Mean prevalence estimates for 30-day cannabis use and 2-week binge drinking, and linear time trends did not differ significantly among NCHA, NSDUH, and MTF. Conclusions: NCHA prevalence estimates are similar to those from NSDUH and MTF, NCHA has unique strengths, and some weaknesses can be offset. Findings support the value of NCHA for studying college students’ substance use and effects of drug policy.