COM-B

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Written By The Center for Implementation

The Capability, Opportunity, Motivation - Behavior (COM-B) theory is an individual-level theory of behavior change. It states that in order for people to change:

  • They need to be capable of change (e.g., have the knowledge and skills).

  • They need to have the opportunity to change (e.g., be in an environment that supports change).

  • They need to be motivated to change.

 

Image specifications

Image adapted from “The Behaviour Change Wheel: A Guide to Designing Interventions” by Susan Michie, Lou Atkins, and Robert West

Image development by Drs. Julia E. Moore and Sobia Khan

Image design by Valentina Gastaldo

How to cite this image (APA Style)

COM-B. Adapted from Michie, S., van Stralen, M. M., & West, R. (2011). The behaviour change wheel: A new method for characterising and designing behaviour change interventions. Implementation Science, 6, 42. https://doi.org/10.1186/1748-5908-6-42. Image adapted by The Center for Implementation, © 2023. Version: V2024.01. https://thecenterforimplementation.com/toolbox/com-b

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