Educare is a birth to age 5 early education program designed to reduce the achievement gap between children from low-income families and their more economically advantaged peers through high-quality center-based programming and strong school-family partnerships. This study randomly assigned 239 children (< 19 months) from low-income families to Educare or a business-as-usual control group. Assessments tracked children 1 year after randomization. Results revealed significant differences favoring treatment group children on auditory and expressive language skills, parent-reported problem behaviors, and positive parent-child interactions. Effect sizes were in the modest to medium range. No effects were evident for observer-rated child behaviors or parent-rated social competence. The overall results add to the evidence that intervening early can set low-income children on more positive developmental courses.