Table 2 Systematic process matching behaviour-change technique with theoretical components for the HEALTHI program
Objective/Behaviour | Psychological variable targeted | Behaviour change technique (theoretical framework) | Implementation strategies | Evaluation |
|---|---|---|---|---|
1. Diet: Monitor your energy intake and ensure your calorie (or kilojoule) intake amount is somewhere in-between the minimum and maximum allowance amount. | Risk perception | Information provision. | Provide information on obesity related health factors. | Questionnaire items measuring Risk perception. |
Planning | Implementation Intentions | Participants create If-then plans on: how they plan to count calories, and how to keep calories to a minimum. | Questionnaire items measuring planning and level of If-then plan. | |
Self-efficacy and motivation | Mental Imagery | Participants are directed to imagine the steps needed to reach their If-then plan. | Questionnaire items to measure self-efficacy and motivation. | |
| Â | Â | For example, imagining that they want to have a fatty food, and then imagine the steps required to implement their implementation intentions that target this obstacle. | Â | |
2. Physical Activity: Engage in physical activity and be as active as possible. Engage in a minimum of 30Â minutes of planned daily exercise. | Risk perception | Information provision | Provide information on obesity related health issues and benefit of physical activity. | Questionnaire items to measure risk perception. |
Planning | Implementation Intentions | Participants create If-then plans on how they will engage in exercise, and what exercise they will perform. | Questionnaire items to measure planning and level of the If-then plan. | |
Self-efficacy and motivation | Mental Imagery | Participants are directed to imagine the steps needed to reach their If-then plan. | Questionnaire items to measure self-efficacy and motivation. | |
Information on objectives needed for both Goal 1 (dietary intake) and Goal 2 (physical activity) | Evaluation | Self-evaluation | Self-monitor dietary intake and physical activity involvement. | Food, drink, and exercise diary. |
Questionnaires to measure dietary and physical activity behaviour. | ||||
Body weight measurements. | ||||
Outcome expectancies (subjective beliefs about unforseen events of a person’s behaviour with succeeding outcomes. That is, a person’s expectations about the consequences of an action). | Information provision. | When changing behaviour, the outcomes are viewed as being negative or positive (e.g., weight-loss) and this influences intention to engage in target behaviour (exercise, diet). | Questionnaire items to measure outcome expectancy. | |
Information on positive outcomes of weight-loss and engaging in diet and exercise. |