title: Measurement properties of the sedentary behavior strategy self-management instrument in African-American breast cancer survivors.
abstract: OBJECTIVE
  To examine the validity and reliability of a modified Sedentary Behavior Strategy Self-Management Scale (SBSMS) in a sample of breast cancer survivors.
  
  
  METHODS
  A total of 291 African-American (AA) breast cancer survivors completed the SBSMS, which was subjected to tests of reliability, structural validity, and tests of measurement equivalence/invariance (ME/I).
  
  
  RESULTS
  A revised measurement model fit the data and demonstrated internal reliability and structural validity. Tests for ME/I revealed that the revised model had appropriate levels of invariance among weight status, educational, and years out from diagnosis groups, but not among age groups.
  
  
  CONCLUSIONS
  The reliability and structural validity of the instrument was supported overall; however, revisions may be needed to support its validity in older AA breast cancer survivors.
authors.affiliation: University of North Texas Health Science Center, School of Public Health, Department of Behavioral and Community Health, Fort Worth, TX, USA. Raheem.Paxton@UNTHSC.edu.
authors.forename: Raheem J
authors.initials: RJ
authors.lastname: Paxton
authors.affiliation: Boise State University, Department of Kinesiology, Boise, ID, USA.
authors.forename: Yong
authors.initials: Y
authors.lastname: Gao
authors.affiliation: Sanford Research, Children's Health Research Center, Sioux Falls, SD, USA.
authors.forename: Stephen D
authors.initials: SD
authors.lastname: Herrmann
authors.affiliation: University of California at San Diego, Department of Preventive Medicine, San Diego, CA, USA.
authors.forename: Gregory J
authors.initials: GJ
authors.lastname: Norman
mesh_terms: D001741:Black or African American / Q000208:ethnology*; D001943:Breast Neoplasms / Q000208:ethnology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D011594:Psychometrics / Q000295:instrumentation*; D015203:Reproducibility of Results; D057185:Sedentary Behavior / Q000208:ethnology*; D012648:Self Care; D011795:Surveys and Questionnaires / Q000592:standards*; D017741:Survivors / Q000523:psychology