title: Validation of the multidimensional outcome expectations for exercise scale in ambulatory, symptom-free persons with multiple sclerosis.
abstract: McAuley E, Motl RW, White SM, Wójcicki TR. Validation of the Multidimensional Outcome Expectations for Exercise Scale in ambulatory, symptom-free persons with multiple sclerosis.
  
  
  OBJECTIVE
  To determine the psychometric properties of the 3-factor Multidimensional Outcome Expectations for Exercise Scale in a sample of ambulatory, symptom-free persons with multiple sclerosis (MS).
  
  
  METHODS
  Cross-sectional validation study.
  
  
  METHODS
  Midwestern university.
  
  
  METHODS
  Community-dwelling adults (N=242) with an established definite diagnosis of MS, as corroborated by the participant's neurologist, who were relapse free for the last 30 days and ambulatory with minimal assistance.
  
  
  METHODS
  Not applicable.
  
  
  METHODS
  Multidimensional Outcome Expectations for Exercise Scale, physical activity, self-efficacy, and physical health status. Confirmatory factor analyses using covariance modeling and correlational analyses were used to establish factorial and construct validity.
  
  
  RESULTS
  Analyses showed excellent factorial validity for the hypothesized factor structure reflecting physical, social, and self-evaluative outcome expectations. All 3 subscales were internally consistent. Theoretically, relevant correlations between outcome expectations and self-efficacy, physical activity, and physical health status were all supported.
  
  
  CONCLUSIONS
  The Multidimensional Outcome Expectations for Exercise Scale appears to be a reliable and valid measure of outcome expectations for exercise in this limited sample of community-dwelling adults with MS. Further validation in clinical samples is warranted.
authors.affiliation: Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL, USA. emcauley@illinois.edu
authors.forename: Edward
authors.initials: E
authors.lastname: McAuley
authors.forename: Robert W
authors.initials: RW
authors.lastname: Motl
authors.forename: Siobhan M
authors.initials: SM
authors.lastname: White
authors.forename: Thomas R
authors.initials: TR
authors.lastname: Wójcicki
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D015444:Exercise / Q000523:psychology*; D006304:Health Status; D006801:Humans; D007398:Interpersonal Relations; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000523:psychology* / Q000534:rehabilitation*; D011594:Psychometrics; D015203:Reproducibility of Results; D020377:Self Efficacy