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Johnston, Lloyd D.; O'Malley, Patrick M.; Bachman, Jerald G.; Schulenberg, John E. – National Institutes of Health, 2006
Substance use by American young people has proven to be a rapidly-changing phenomenon, requiring frequent assessments and reassessments. Since the mid-1960s it has remained a major concern for the nation. Smoking, drinking, and illicit drug use are leading causes of morbidity and mortality, both during adolescence as well as later in life. How…
Descriptors: Narcotics, Substance Abuse, Grade 8, Grade 10
Johnston, Lloyd D.; O'Malley, Patrick M.; Bachman, Jerald G.; Schulenberg, John E. – National Institutes of Health, 2005
Substance use by American young people has proven to be a rapidly-changing phenomenon, requiring frequent assessments and reassessments. Since the mid-1960s it has remained a major concern for the nation. Smoking, drinking, and illicit drug use are leading causes of morbidity and mortality, both during adolescence as well as later in life. How…
Descriptors: Substance Abuse, Drug Use, Secondary School Students, Adolescents