Elva M. Arredondo, Noe Crespo, and John P. Elder are with the Graduate School of Public Health, San Diego State University, San Diego, CA. Nanette V. Lopez, Jessica Haughton, and Lilian Perez are with the Institute for Behavioral and Community Health, San Diego. James Sallis is with the Department of Family Medicine and Public Health, University of California, San Diego. Guadalupe Ayala is with the College of Health and Human Services, San Diego State University.