This study sought to identify trajectories of marijuana use in the Seattle Social Development Project (n = 808) sample from age 14 through 30, and to examine the extent to which individuals in these trajectories differed in their substance use problems, mental health, problem behavior, economic outcomes, and positive functioning at age 33. In…

Multiracial youth are thought to be more vulnerable to peer-related risk factors than are single-race youth. However, there have been surprisingly few well-designed studies on this topic. This study empirically investigated the extent to which multiracial youth are at higher risk for peer influenced problem behavior. Data are from a representative…

Monitoring the Future (MTF) is designed to give sustained attention to substance use among the nation's youth and adults. It is an investigator-initiated study that originated with and is conducted by a team of research professors at the University of Michigan's Institute for Social Research. Since its onset in 1975, MTF has been continuously…

Aims: The aim of this article was to investigate the factors associated with ecstasy use in school-aged teenagers. Methods: This was a longitudinal study of adolescent drug use, which was undertaken in three towns in Northern Ireland. A questionnaire was administered annually to participants. In this article ecstasy use patterns amongst a cohort…

Substance use is a leading cause of preventable morbidity and mortality, and is in large part why people in the U.S. have the highest probability among industrialized nations of dying by age 50. Substance use deserves our sustained attention. It is also an important determinant of many social ills including child and spouse abuse, violence more…

Discusses a school-based prevention program initiated to reduce alcohol, tobacco, and other drug (ATOD) use among adolescents. Investigates changes in reported ATOD use from 1987 to 1991. Significant decreases were found for use of most drugs with the exception of alcohol. Involvement in problem behaviors was the most salient risk factor whereas…

Examined drug use, involvement in problem behavior, and family and peer predictors of these behaviors among Indian and white adolescents in a Canadian urban community. Found the groups had a similar rate for alcohol use; however, Indian adolescents showed higher rates and more frequent use of cigarettes, marijuana, solvents, and greater…

This booklet reports on the results of the 1998 Texas School Survey of Substance Use among Students: Grades 4-6. The statewide school survey monitors trends in substance use among public school students, identifies emerging problem areas, and serves as a basis of comparison for local school surveys which are conducted annually by various school…