title: The development of a scale measuring integrated regulation in exercise.
abstract: OBJECTIVE
  This research aimed to develop and validate a measure of integrated regulation based on self-determination theory (SDT) in an exercise context.
  
  
  METHODS
  Cross-sectional and prospective surveys were employed.
  
  
  METHODS
  The measure was developed from first principles from an initial item pool and items were selected using expert evaluators. The validity of the final item pool was tested across a high-active sample and a lower active sample (N= 488) using single- and multi-sample confirmatory factor analyses (CFAs).
  
  
  RESULTS
  Analyses supported the factorial, nomological, discriminant, and predictive validity of the scale.
  
  
  CONCLUSIONS
  The validity of the integrated regulation measure was supported. Present analyses provide evidence that the scale is a valid and reliable tool that may be used to evaluate the effectiveness of autonomy-supportive interventions in health-related behavioural contexts.
authors.affiliation: School of Psychology, University of Nottingham, University Park, Nottingham NG7 2RD, UK. sarahmc91@hotmail.com
authors.forename: Sarah
authors.initials: S
authors.lastname: McLachlan
authors.forename: Christopher
authors.initials: C
authors.lastname: Spray
authors.forename: Martin S
authors.initials: MS
authors.lastname: Hagger
mesh_terms: D000293:Adolescent; D000328:Adult; D003430:Cross-Sectional Studies; D015444:Exercise; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D009042:Motivation; D011446:Prospective Studies; D011795:Surveys and Questionnaires / Q000592:standards*; D055815:Young Adult