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Framework · Susan Michie, Maartje van Stralen and Robert West

COM-B and the Behaviour Change Wheel

Behaviour depends on capability, opportunity and motivation. Diagnose which is missing, then choose interventions that target it.

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Behaviour depends on capability, opportunity and motivation. Diagnose which is missing, then choose interventions that target it.

How to use it with a real habit

  • Ask what’s missing: capability, opportunity or motivation?
  • Don’t treat opportunity problems as motivation problems.
  • Pick techniques that target the gap.

What the evidence says

Conceptual framework: A way of organising ideas that helps you think clearly. It describes rather than predicts, so it is judged by how useful it is.

A widely used framework for designing interventions; it organises choices rather than predicting outcomes.

Limits

  • Designed for professionals; the simple question is the most useful part for individuals.

Sources

  • Michie, van Stralen & West (2011). The behaviour change wheel: A new method for characterising and designing behaviour change interventions. Implementation Science. doi:10.1186/1748-5908-6-42
  • The Behaviour Change Wheel — Susan Michie, Lou Atkins & Robert West (2014)
  • UCL Centre for Behaviour Change

Related techniques

  • Problem solving — Define the barrier, list options, pick one, test it, and check. (Research-supported)
  • Redesign a space — Rearrange a room, desk or shelf so it invites the habit you want. (Research-supported)
  • Ask for practical support — Ask one person for one specific kind of help. (Research-supported)

Previous: WOOP — mental contrasting with implementation intentions

Next: Behaviour Change Technique Taxonomy (v1)

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