 Families of 4- to 7-month-old children attending a participating pediatric clinic will be randomized to either an ASQBBROR group, an ROR-only group, or a no intervention control group. Outcomes measures will be obtained at 15, 24, 36, and 48 months of age and include measures of the home environment, parenting and parent-child interaction, child language and mental development measures, and rates of referral to Early Intervention programs. Baseline and ongoing demographic information and psychosocial and biological risk factors will also be gathered to see how they relate to child and family outcomes and to determine whether certain subgroups of families are more likely to benefit from the intervention than others. 