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The development of a scale measuring integrated regulation in exercise
Sarah McLachlan1, Christopher Spray, Martin S Hagger
1School of Psychology, University of Nottingham, University Park, Nottingham NG7 2RD, UK. sarahmc91@hotmail.com
Objectives:
This research aimed to develop and validate a measure of integrated regulation based on self-determination theory (SDT) in an exercise context.
Design:
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.
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