Home > Publications . Search All . Browse All . Country . Browse PSC Pubs . PSC Report Series

PSC In The News

RSS Feed icon

Sastry's 10-year study of New Orleans Katrina evacuees shows demographic differences between returning and nonreturning

Stafford says less educated, smaller investors more likely to sell off stock and lock in losses during market downturn

Chen says job fit, job happiness can be achieved over time

Highlights

Deirdre Bloome wins ASA award for work on racial inequality and intergenerational transmission

Bob Willis awarded 2015 Jacob Mincer Award for Lifetime Contributions to the Field of Labor Economics

David Lam is new director of Institute for Social Research

Elizabeth Bruch wins Robert Merton Prize for paper in analytic sociology

Next Brown Bag

Monday, Oct 12
Joe Grengs, Policy & Planning for Social Equity in Transportation

John E. Schulenberg photo

Trajectories of Marijuana Use During the Transition to Adulthood: the Big Picture Based on National Panel Data

Publication Abstract

Schulenberg, John E., A.C. Merline, Lloyd Johnston, Patrick M. O'Malley, Jerald Bachman, and V.B. Laetz. 2005. "Trajectories of Marijuana Use During the Transition to Adulthood: the Big Picture Based on National Panel Data." Journal of Drug Issues, 35:255-279.

The purposes of this study were to identify trajectory groups of frequent marijuana use during emerging adulthood; distinguish among trajectory groups according to demographic and lifestyle characteristics; and examine how the trajectory groups relate to behavioral, attitudinal, and social-emotional correlates over time. National panel data from the Monitoring the Future study were used: 18 cohorts of high school seniors (classes of 1977-1994) were followed biennially through age 24. Frequent marijuana use was defined as 3+ occasions of use in past month and/or 20 to 40+ occasions in past year Based on four waves of complete longitudinal data (N= 19,952), six frequent marijuana use trajectory groups were identified: chronic, decreased, increased, fling, rare, and abstain. Categorical analyses revealed trajectory group differences in demographic and lifestyle characteristics at senior year and age 24. The trajectory groups varied significantly in longitudinal patterns of other substance use, problem behaviors, and well-being.

PMCID: PMC1400593. (Pub Med Central)

Licensed Access Link

Country of focus: United States of America.

Browse | Search : All Pubs | Next