CER is currently a leading evaluator of early childhood programs. CER has overseen the evaluation of over 50 separate early childhood programs and assisted in the state-wide evaluation of three major preschool improvement programs in California. Additionally, CER has served as the evaluator for twelve major preschool improvement programs targeting Head Start and state funded preschools – three of which have produced peer-reviewed studies accepted through the American Educational Research Association. Moreover, CER staff regularly present on early childhood assessments, data collection, qualitative methods, and approaches to continuous improvements of homebase and centerbase preschool programs.