The COM-B Physical Activity Questionnaire
The COM-B Physical Activity Questionnaire
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About the questionnaire
About the questionnaire
The COM-B PAQ (Full Version) is a 37-item questionnaire comprising three subscales:
Capability, Opportunity and Motivation
Multiple items reflect each relevant Theoretical Domains Framework (TDF) domain, providing detailed behavioural profiling across 15 domains mapped to COM-B.
Why was it developed?
Why was it developed?
The full version was developed to provide a comprehensive, psychometrically robust measure of the behavioural determinants of physical activity.
It is intended to:
Identify key behavioural barriers within a population
Inform targeted intervention design
Guide selection of Behaviour Change Techniques
Measure change in behavioural determinants pre- and post-intervention
Support research and programme evaluation
Validity and Reliability
Validity and Reliability
The 37-item COM-B PAQ has undergone rigorous academic development and validation.
It demonstrates:
Strong internal consistency
Confirmed factor structure
Convergent, discriminant and predictive validity
Good test–retest reliability
The full multi-phase development and psychometric validation study can be accessed via the References page.
Completing the questionnaire
Completing the questionnaire
37 items
3 sections
(Capability, Opportunity, Motivation)
5-point Likert scale
(Strongly Disagree to Strongly Agree)
Completion time: approximately 8–10 minutes
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