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Why are there different versions of the COM-B model diagram?

West, Robert; Michie, Susan; (2023) Why are there different versions of the COM-B model diagram? Qeios , Article AWANWG. 10.32388/awanwg. Green open access

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Abstract

The Capability, Opportunity, Motivation-Behaviour (COM-B) model is used to understand and predict human behaviour, and develop interventions aimed at influencing behaviour. It has been presented in several different diagrams, varying in the specification of the causal links between capability, opportunity, motivation and behaviour. The differences arise from the different levels of elaboration of the model. For many purposes the simplest version as set out in the original paper describing the model is sufficient. This version represents causal influences from capability and opportunity to motivation and bidirectional influences between these and behaviour. However, in principle there can also be causal influences from motivation to capability and opportunity, and for greater precision the diagram can show capability and opportunity influencing the relationship between motivation and behaviour rather than behaviour directly. There may be occasions when it is useful to include one or more of these additional causal specifications in the COM-B model diagram.

Type: Article
Title: Why are there different versions of the COM-B model diagram?
Open access status: An open access version is available from UCL Discovery
DOI: 10.32388/awanwg
Publisher version: https://doi.org/10.32388/awanwg
Language: English
Additional information: This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Clinical, Edu and Hlth Psychology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health > Behavioural Science and Health
URI: https://discovery.ucl.ac.uk/id/eprint/10170003
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