This NIJ Research in Brief presents the findings of an evaluation of the Children at Risk drug and delinquency prevention program for high-risk 11- to 13-year-old adolescents living in narrowly defined and severely distressed neighborhoods in five cities. CAR delivered a broad range of integrated services to the youths and members of their households. The study found that CAR youths participated in more positive activities (school clubs, religious groups, sports, for instance) and reported attending more drug and alcohol abuse programs during the program period than did youths in the control group.