Communities That Care (CTC) is a prevention system designed to reduce adolescent substance use and delinquency through the selection of effective preventive interventions tailored to a community's specific profile of risk and protection. A community-randomized trial of CTC, the Community Youth Development Study, is currently being conducted in 24…

Compared self-administered diaries and telephone interviews as ways of collecting data from 100 adults and adolescents in a survey of drinking, drug use, and sexual activity. Outlines advantages of each method and the higher personnel costs of telephone interviews. (SLD)

Over the past quarter-century, evaluation researchers have recognized the importance of documenting implementation practices of programs as they are transferred from controlled to real-world settings. As programs become widely disseminated in the general population, there is a tendency for practitioners to alter programs in a manner more conducive…

Methods used to follow, for 18 months after pregnancy resolution, 241 premaritally pregnant urban adolescents in a longitudinal drug use study are described. One respondent dropped out after the first interview. Temporary attrition at each data collection wave was between 1 percent and 3 percent. Sample recruitment and retention are discussed.…