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Burns, Alison Reimuller; Hussong, Andrea M.; Solis, Jessica M.; Curran, Patrick J.; McGinley, James S.; Bauer, Daniel J.; Chassin, Laurie; Zucker, Robert A. – International Journal of Behavioral Development, 2017
The current study demonstrates the application of an analytic approach for incorporating multiple time trends in order to examine the impact of cohort effects on individual trajectories of eight drugs of abuse. Parallel analysis of two independent, longitudinal studies of high-risk youth that span ages 10 to 40 across 23 birth cohorts between 1968…
Descriptors: Substance Abuse, Cohort Analysis, Trend Analysis, Longitudinal Studies
ACT, Inc., 2016
This report provides information about the performance of Michigan's 2016 graduating seniors who took the ACT as sophomores, juniors, or seniors; and self-reported at the time of testing that they were scheduled to graduate in 2016. Beginning with the Graduating Class of 2013, all students whose scores are college reportable, both standard and…
Descriptors: Academic Achievement, Academic Aspiration, Academic Standards, Achievement Tests
ACT, Inc., 2012
This report provides information about the performance of Michigan's 2012 graduating seniors who took the ACT as sophomores, juniors, or seniors; and self-reported at the time of testing that they were scheduled to graduate in 2012 and tested under standard time conditions. This report focuses on: (1) Performance: student test performance in the…
Descriptors: Academic Achievement, Academic Aspiration, Academic Standards, Access to Information
ACT, Inc., 2009
This report provides information about the performance of 2009 graduating seniors who took the ACT as sophomores, juniors, or seniors; and self-reported at the time of testing that they were scheduled to graduate in 2009 and tested under standard time conditions. This report focuses on: (1) Performance: student test performance in the context of…
Descriptors: Academic Achievement, Academic Aspiration, Articulation (Education), College Bound Students