This paper is based on data collected as part of the Community Intervention Trial for Youth (CITY), a multisite study with a common protocol that was developed collaboratively by investigators at eight research institutions and at the Centers for Disease Control and Prevention. We thank our respondents, as well as Alianza Dominicana, Hispanic AIDS Forum (HAF), and Young Adults against Drugs and Alcohol (YAADA), our community-based partners. The study was funded by the Centers for Disease Control and Prevention under Cooperative Agreement No. CDC-U62/CCU11-2642-05.