Table 1.
Interview/focus group questions asked to participants in accordance with the TDF and COM-B model
| COM-B | TDF | QUESTION |
|---|---|---|
| Psychological Capability | Knowledge. | What is your understanding of the MIND diet? |
| Psychological Capability | Memory, attention and decision processes. |
To what extent is eating MIND diet foods something you normally do? ➢ Prompt: Do you eat MIND diet foods each day |
| Psychological Capability | Behaviour regulation | To what extent do you monitor whether you are eating MIND die foods? |
|
Physical Capability |
Skills | To what extent are you confident in cooking/eating MIND diet foods? |
| Social Opportunity | Social influences |
To what extent do/would your family or friends help or hinder you eating MIND diet foods? ➢ Prompt: Does/would your family support you in eating the MIND diet? |
| Physical Opportunity | Environmental context and resources. | Discuss anything in your work or/and home environment that might help or hinder you eating the MIND diet? E.g budget, time |
| Reflective Motivation | Social/Professional role and identity |
To what extent would eating the MIND diet be accepted by your friends and family? ➢ Prompt: Do you think your family/friends influences what you eat? |
| Reflective Motivation | Belief about capabilities |
How difficult/easy would it be for you to eat the MIND diet? ➢ Prompt: What are the barriers to consuming the MIND diet? ➢ Prompt: What are the facilitators to consuming the MIND diet? |
| Reflective Motivation | Optimism | To what extent are you confident that any barriers you may have to eating the MIND diet can be solved? |
| Reflective Motivation | Intention | To what extent do you intend to follow the MIND diet to promote brain health? |
| Reflective Motivation | Goals | To what extent would you like to follow the MIND diet? |
| Reflective Motivation | Belief about consequences |
What do you think will happen if you eat the MIND diet? ➢ Prompt: Discuss any benefits to eating the MIND diet? |
| Automatic Motivation | Reinforcement | To what extent are there any incentives for you to the MIND diet? |
|
Automatic Motivation |
Emotion | How do you feel about eating the MIND diet? |
COM-B Capability (C): Psychological or physical ability to enact behaviour, Opportunity (O) Physical and social environment that enables behaviour, Motivation (M) Reflective or automatic mechanisms that activate or inhibit behaviour, Behaviour (B), TDF Theoretical Domains Framework [45].