title: Establishing construct validity of a stages-of-change algorithm for physical activity.
authors.affiliation: Department of Kinesiology, Louisiana State University, Baton Rouge, LA 70803, USA. mkosma@lsu.edu
authors.forename: Maria
authors.initials: M
authors.lastname: Kosma
authors.forename: Rebecca
authors.initials: R
authors.lastname: Ellis
mesh_terms: D000328:Adult; D000465:Algorithms; D003430:Cross-Sectional Studies; D006233:Persons with Disabilities / Q000523:psychology*; D005260:Female; D015438:Health Behavior; D006801:Humans; D020407:Internet; D008297:Male; D008962:Models, Theoretical; D009043:Motor Activity; D020377:Self Efficacy