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Auteur L.D. JOHNSTON |
Documents disponibles écrits par cet auteur (4)
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Article
L.C. AN ; J.G. BACHMAN ; L.D. JOHNSTON ; P.M. O'MALLEY ; J.E. SCHULENBERG ; Institute for Social Research. University of Michigan. USA |[BDSP. Notice produite par INIST G4jR0xjk. Diffusion soumise à autorisation]. Objectives. This study identified high school seniors at how, moderate, and high risk lot eigarette use to exam the changes in the prevalence of daily smoking within r[...]![]()
Article
J.G. BACHMAN ; P. FREEDMAN-DOAN ; L.D. JOHNSTON ; P.M. O'MALLEY ; D.R. SEGAL ; Survey Research Center. Institute for Social Research. University of Michigan. Ann Arbor. USA |[BDSP. Notice produite par INIST yR0xXvQb. Diffusion soumise à autorisation]. Objectives. The US armed forces adopted "zero tolerance'policies concerning illicit drug use in 1980 and later developed policies to discourage tobacco and alcohol abu[...]![]()
Article
[BDSP. Notice produite par INIST sOE3nR0x. Diffusion soumise à autorisation]. Objectives. This article reports the prevalence of, and trends, in driving after drinking and riding in a car with a driver who has been drinking among American high s[...]![]()
Article
J.G. BACHMAN ; L.D. JOHNSTON ; P.M. O'MALLEY ; PHD ; Institute for Social Research. University of Michigan. Ann Arbor. USA |[BDSP. Notice produite par INIST LUqR0xz6. Diffusion soumise à autorisation]. Objectives. Marijuana use among high school seniors increased during most of the 1970s, decreased throughout the 1980s, and has been increasing again during the 1990s.[...]