This report examines the research literature on credit-based transition programs: dual enrollment, Advanced Placement (AP), International Baccalaureate (IB), Tech Prep, and Middle College High Schools (MCHS). It includes the variation in implementation and summarizes findings from 21 research evaluations. Recommendations on future research are provided.
Promoting College Access and Success: A Review of Credit-based Transition Programs
U.S. Department of Education, Office of Vocational and Adult Education