mechanism of action through personal role

A <behaviour change intervention mechanism of action> in which the causal influence affects a personal role.

The relation between ‘mechanism of action through personal role’ and ‘personal role’ is labelled as ‘through’. The ‘through’ relationship is defined as: ‘A relation that holds between an intervention’s mechanism of action and an entity x, in which the entity x (a) participates in or is part of the mechanism of action process and (b) is influenced by a BCI or its context such that there is some change in entity x.’ In this definition, ‘change’ refers to change from what would have been the case rather than change from an existing state of affairs. This is to capture the fact that mechanisms of action can act to sustain a current state of affairs, for example preventing smoking uptake. In the definition, ‘some change’ captures changes in salience, change in valence, or being added, increased, decreased, manifested/realised, created, started, stopped or altered rate.

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Mechanisms of Action