Impacts of Four Title V, Section 510 Abstinence Education Programs, Final Report, April 2007 by: Christopher Trenholm, Barbara Devaney, Ken Fortson, Lisa Quay, Justin Wheeler, and Melissa Clark, Mathematica Policy Research, Inc. Contract No.: HHS 100-98-0010 MPR Reference No.: 8549-110 Submitted to: U.S. Department of Health and Human Services Office of the Assistant Secretary for Planning and Evaluation.