1. Lisa M. Gatzke-Kopp is with the Department of Human Development and Family Studies, Pennsylvania State University, University Park. Michael Willoughby is with the Department of Education and Workforce Development, RTI International, Raleigh, NC. Amii M. Kress, Kristen McArthur, and Cara Wychgram are with the Department of General Epidemiology and Methodology, Johns Hopkins University, Baltimore, MD. David C. Folch is with the Department of Geography, Planning and Recreation, Northern Arizona University,...