This study examined the contributions of home, school, and neighborhood factors related to youth physical activity (PA). Adolescents (ages 12–18; N = 137) and parents of younger children (ages 5–11; N = 104) from three US metropolitan areas completed surveys. Youth PA was estimated from six items assessing overall physical activity. Bivariate analyses between environment factors and PA
Millstein is with the SDSU/UCSD Joint Doctoral Program in Clinical Psychology, San Diego, CA. Strobel and Sallis are with San Diego State University, San Diego, CA. Kerr and Norman are with the University of California, San Diego, San Diego, CA. Durant is with the University of Alabama - Birmingham School of Medicine, Birmingham, AL. Harris is with Harvard Medical School/Children’s Hospital, Boston, MA. Saelens is with Seattle Children’s Hospital Research Institute and University of Washington, Seattle, WA.