Step counts and self-reported physical activity among upper elementary school students vary with aerobic fitness
McGee, Annie, Williams, Skip M., Coleman, Margaret M., Hurd, Amy, Laurson, Kelly R.
The effects of single-sex versus coeducational physical education on american junior high PE students’ physical activity levels and self-competence
Vargos, Crystal, Williams, Skip M., Henninger, Mary L., Coleman, Margaret M., Burns, Ryan