This study investigated the effectiveness of the Haitian Perinatal Intervention Project, which provided services to Haitian women and children in south Florida. The project's goals were to help Haitian mothers obtain health services for themselves and their infants and to provide information concerning child care and cognitive stimulation. Participants were identified in the second trimester of their pregnancy and randomly assigned to an intervention or control group. Intervention group mothers were visited in their homes by Haitian paraprofessionals every two weeks during the last trimester and biweekly for two years after infants' deliveries. Control mothers were visited in their homes twice before delivery, but no postpartum home intervention was provided. The study suggests that a biweekly home intervention program provided by indigenous paraprofessionals to Haitian women during pregnancy and the first 12 months of infants' lives may provide: (1) early and continuing access to prenatal obstetric care; (2) favorable birth outcomes in term delivery and appropriate growth in utero; (3) increased developmental scores; and (4) more appropriate and stimulating mother-infant interaction throughout the first year. (RJC)