This prospective study was conducted to assess the effects of a 4-week community pediatrics and advocacy rotation with a unique project (Curriculum A), a 2-week community pediatrics rotation with advocacy training and unique project throughout residency (Curriculum B), or no curriculum exposure on residents' attitudes, perceived competence, knowledge, and behaviors. A 27-item questionnaire was used to assess attitudes, competence, and knowledge. Examination of residents' patients' use of Early Intervention services during the 5-year period after curricula introduction assessed behaviors. Seventy percent of questionnaires distributed over several years were completed by 105 of 111 eligible residents. Residents exposed to Curriculum A or B demonstrated improved competence and knowledge but no significant increase in positive attitudes toward community pediatrics and advocacy. Residents' patients' use of Early Intervention services increased 65% during the 5-year period after curriculum introduction. No significant differences in outcome measures were observed between Curriculum A and Curriculum B.