title: Psychometric Properties of Physical Activity and Leisure Motivation Scale in Farsi: an International Collaborative Project on Motivation for Physical Activity and Leisure.
abstract: BACKGROUND
  Given the importance of regular physical activity, it is crucial to evaluate the factors favoring participation in physical activity. We aimed to report the psychometric analysis of the Farsi version of the Physical Activity and Leisure Motivation Scale (PALMS).
  
  
  METHODS
  The Farsi version of PALMS was completed by 406 healthy adult individuals to test its factor structure and concurrent validity and reliability.
  
  
  RESULTS
  Conducting the exploratory factor analysis revealed nine factors that accounted for 64.6% of the variances. The PALMS reliability was supported with a high internal consistency of 0.91 and a high test-retest reliability of 0.97 (95% CI: 0.97-0.98). The association between the PALMS and its previous version Recreational Exercise Motivation Measure scores was strongly significant (r= 0.86, P < 0.001).
  
  
  CONCLUSIONS
  We have shown that the Farsi version of the PALMS appears to be a valuable instrument to measure motivation for physical activity and leisure.
authors.affiliation: Sports Medicine Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Sahar
authors.initials: S
authors.lastname: Zarei
authors.affiliation: Sports Medicine Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Amir-Hossein
authors.initials: AH
authors.lastname: Memari
authors.affiliation: Department of Neurology, David Geffen School of Medicine, UCLA, Los Angeles, USA.
authors.forename: Pouria
authors.initials: P
authors.lastname: Moshayedi
authors.affiliation: Sports Psychology Department, National Olympic and Paralympic Academy of Iran and Asian South Pacific Association of Sport Psychology (ASPASP), Tehran, Iran.
authors.forename: Fatolla
authors.initials: F
authors.lastname: Mosayebi
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Mohammad Ali
authors.initials: MA
authors.lastname: Mansournia
authors.affiliation: Sports Centre, University of Malaya, Kuala Lumpur, Malaysia.
authors.forename: Selina
authors.initials: S
authors.lastname: Khoo
authors.affiliation: Institute of Sport, Exercise and Active Living (ISEAL), College of Sport and Exercise Science, Victoria University, Melbourne, Australia.
authors.forename: Tony
authors.initials: T
authors.lastname: Morris
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015444:Exercise; D005163:Factor Analysis, Statistical; D005260:Female; D064368:Healthy Volunteers; D006801:Humans; D007492:Iran; D007802:Language; D007899:Leisure Activities; D008297:Male; D008875:Middle Aged; D009042:Motivation; D011594:Psychometrics / Q000592:standards*; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D014175:Translating; D055815:Young Adult