Table 1 Summary of intervention components and behaviour change techniques and constructs applied
Intervention component | Content | Behaviour change techniques (coded according to the BCTTv1 [32]) | Ideational variables (constructs) |
|---|---|---|---|
A. Interactive health education lessons | • Introduction of physically active and interactive health education lessons • Providing personalised lifestyle reports • Introducing goal setting and habit formation into the lessons | 1.1 Goal setting (behaviour); 1.2 problem solving (coping planning); 1.4 action planning; 1.9 commitment; 2.2 feedback on behaviour; 4.1 instruction on how to perform a behaviour; 5.1 information about health consequences; 5.6 information about emotional consequences; 9.1 credible source | • Knowledge/skills • Attitudes • Self-efficacy • Emotional response |
B. Actionable home activities and incentives to support habit formation | • Complete a variety of activities that can be repeated to support habit formation • Incentivising task completion | 3.1 Social support (practical); 8.1 behavioural practice/ rehearsal; 8.3 habit formation; 10.1 material incentive (behaviour); 10.2 material reward (behaviour) | • Knowledge/skills • Attitudes • Self-efficacy |
C. Parental/guardian engagement | • Engaging parents/guardians in home activities • Sharing of children’s personalised lifestyle reports with parents/guardians • Sharing of lesson materials with parents/guardians | 2.2 Feedback on behaviour; 3.2 social support (practical) | • Attitudes • Social support |
D. Optimise school environment | • Level-wide activities during recess to increase awareness of fruits and vegetables and ideas to break up sitting time • Working with canteen vendors on the providence and placements of cues to encourage fruit and vegetable intake. | 7.1 Prompt/cues; 6.2 social comparison; 10.4 social reward | • Attitudes • Perceived norms • Emotional response • Environment support |