Table 2.

Active ingredients of the I-PLAN intervention

BCT	Code (from BCTTv1)	Definition (from BCTTv1)	Intervention functions served	COM-B elements addressed
Goal setting (behaviour)	1.1	Set or agree a goal defined in terms of the behaviour to be achieved	Enablement	Auto M Ref M
Problem solving	1.2	Analyse or prompt the person to analyse factors influencing the behaviour and generate or select strategies that include overcoming barriers and/or increasing facilitators	Enablement	Auto M Ref M
Action planning	1.4	Prompt detailed planning of performance of the behaviour (must include one of context, frequency, duration and intensity). Context may be environmental or internal	Enablement	Auto M Ref M
Instruction on how to perform a behaviour	4.1	Advise or agree on how to perform the behaviour	Training	Psych C Phys O AutoM
Information about health consequences	5.1	Provide information (e.g. written, verbal, visual) about health consequences of performing the behaviour	Education	Psych C Auto M Ref M
Information about social and environmental consequences	5.3	Provide information (e.g. written, verbal, visual) about social and environmental consequences of performing the behaviour	Education	Psych C Auto M Ref M
Demonstration of the behaviour	6.1	Provide an observable sample of the performance of the behaviour, directly in person or indirectly e.g. via film, pictures for the person to aspire to or imitate	Training, modelling	Psych C Phys O AutoM
Prompts/cues	7.1	Introduce or define environmental or social stimulus with the purpose of prompting or curing the behaviour. The prompt or cue would normally occur at the time or place of performance	Environmental restructuring	Phys O Auto M
Behavioural practice/ rehearsal	8.1	Prompt practice or rehearsal of the performance of the behaviour one or more times in a context or at a time when the performance may not be necessary, in order to increase habit and skill	Training	Psych C Auto M
Habit formation	8.3	Prompt rehearsal and repetition of the behaviour in the same context repeatedly so that the context elicits the behaviour	Training	Psych C Auto M
Restructuring the social environment	12.2	Change or advise to change the social environment in order to facilitate performance of the wanted behaviour or create barriers to the unwanted behaviour (other than prompts/	Environmental restructuring	Soc O
Adding objects to the environment	12.5	cues, rewards or punishments) Add objects to the environment in order to facilitate performance of the behaviour	Environmental restructuring	Phys O Auto M
Punishment	14.2	Arrange for aversive consequence contingent on the performance of the unwanted behaviour	Coercion	Auto M