title: Social support and peer norms scales for physical activity in adolescents.
abstract: OBJECTIVE
  To evaluate psychometric properties of a Social Support and Peer Norms Scale in 5th-7th grade urban girls.
  
  
  METHODS
  Baseline data from 509 girls and test-retest data from another 94 girls in the Midwestern US were used.
  
  
  RESULTS
  Cronbach's alpha was .83 for the Social Support Scale and .72 for the Peer Norms Scale, whereas test-re-test reliability was .78 for both scales. Exploratory factor analysis suggested a single factor structure for the Social Support Scale, and a 3-factor structure for the Peer Norms Scale. Social support was correlated with accelerometer-measured physical activity (r = .13, p = .006), and peer norms (r = .50, p < .0001).
  
  
  CONCLUSIONS
  Both scales have adequate psychometric properties.
authors.affiliation: Michigan State University College of Nursing, East Lansing, MI, USA.
authors.forename: Jiying
authors.initials: J
authors.lastname: Ling
authors.affiliation: Michigan State University College of Nursing, East Lansing, MI, USA. robbin76@msu.edu.
authors.forename: Lorraine B
authors.initials: LB
authors.lastname: Robbins
authors.affiliation: University of Michigan School of Public Health, Ann Arbor, MI, USA.
authors.forename: Ken
authors.initials: K
authors.lastname: Resnicow
authors.affiliation: Michigan State University Department of Kinesiology, East Lansing, MI, USA.
authors.forename: Marion
authors.initials: M
authors.lastname: Bakhoya
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology; D002648:Child; D002652:Child Behavior / Q000523:psychology; D015444:Exercise / Q000523:psychology*; D005260:Female; D006801:Humans; D009043:Motor Activity; D010379:Peer Group; D011594:Psychometrics; D020377:Self Efficacy; D066262:Social Norms; D012944:Social Support; D011795:Surveys and Questionnaires