From the College Board
From the Iowa Department of Education
From Other Sources
Geiser, S., & Santelices, V. (2004). The role of Advanced Placement and honors courses in college admissions (Paper CSHE-4-04). Berkeley, CA: UC Berkeley, Center for Studies in Higher Education.
Keng, L., & Dodd, B. G. (2008). A comparison of college performances of AP and Non-AP student groups in 10 subject areas (College Board Research Report No. 2008-7). New York, NY: The College Board.