1. Stanford Prevention Research Center; Stanford University; Stanford California
2. Department of Exercise Science; University of South Carolina; Columbia South Carolina
3. Prevention Research Center; University of South Carolina; Columbia South Carolina
4. Institute for Social Research; University of Michigan; Ann Arbor Michigan
5. Exercise and Wellness Program; Arizona State University; Tempe Arizona
6. Department of Health Promotion, Education, and Behavior; University of South Carolina; Columbia South Carolina
7. Department of Epidemiology and Biostatistics; University of South Carolina; Columbia South Carolina