We would particularly like to thank the NCRVE Board, Center Director Charles Benson, and Cathy Stasz of RAND for their continuing support of this work. Additionally, RAND researchers Kim Ramsey and Diane Schoeff made substantial contributions to the data collection and initial analyses of the study. Paul Hill of RAND and Julia Wrigley of CUNY provided helpful reviews of an earlier draft, and Patricia Bedrosian contributed her skillful editing. Responsibility for the conclusions herein, however, remains with us.