Researchers report mental health disparities that indicate that children and families with the highest need for services often are less likely to use them. Only a few investigators have focused on service delivery models to address underuse of services. This study examines the Children's Hospital of Orange County (CHOC)/University of California, Irvine (UC Irvine) Initiative for the Development of Attention and Readiness (CUIDAR) model of service delivery in reducing disparities in access to and use of services and in decreasing child behavior problems in a community-based study with 169 self-referred, low-income, and predominantly minority families. The findings indicate that among minority families, CUIDAR is both more accessible and more equitably used than local, publicly funded mental health services. Among Latinos, attendance rates are higher when services are provided in Spanish. Parents report significant improvements in overall child difficulty and conduct problems. In addition, parents report high levels of satisfaction with the program. (Contains 5 tables.)