Table 2.

Description of intervention components and associated behaviour change techniques

Intervention condition	Resources included in booklet	Physical activity behaviour change techniques	BCT taxonomy construct
Education	Canadian 24-hour Movement Guidelines: included list of benefits of physical activity.	Instruction on how to perform a behaviour.	4.1
		Information about health consequences.	5.1
		Salience of consequences.	5.2
		Information about social and environmental consequences.	5.3
		Information about emotional consequences.	5.6
Planning (includes education condition resources)	Goal setting materials. Explanation of SMART goals (specific, manageable, achievable, realistic, timely), self-monitoring. Family physical activity planning worksheets: included brainstorming worksheets for where to be active, new modes for being active, how to plan activity, how to incorporate rewards and journaling and tracking worksheets.	Goal setting (behaviour).	1.1
		Problem solving.	1.2
		Action planning.	1.4
		Self-monitoring of behaviour.	2.3
		Self-monitoring of outcome(s) of behaviour.	2.4
		Social support (practical).	3.2
		Social support (emotional).	3.3
		Non-specific reward.	10.3
		Self-incentive.	10.7
		Restructure physical environment.	12.1
		Restructure social environment.	12.2
Habit  (includes education and planning group resources)	Habit building resources. Explanation and examples of habits, introduction to cues and anchoring, brainstorming and planning worksheets.	Prompts/cues.	7.1
		Behavioural practice/rehearsal.	8.1
		Habit formation.	8.3

Behaviour change techniques are coded as outlined by the Behaviour Change Technique (BCT) Taxonomy Version 1.⁴⁵