Supplementary information

Focus group topic guide

1.  Introductory questions:

·  What things do you like to do in your spare time?

·  How much pocket money do you think people your age get a week?

·  Do people in your age group do any jobs to earn money like a paper round or odd jobs?

·  What do you people your age spend your money on?

2.  Food/nutrition/health questions:

·  What kinds of foods do you tend to you eat when you’re not at school?

·  What kinds of foods do you and your friends like to eat?

·  What kinds of foods do you and your friends dislike eating?

·  How much say do you have in the foods you eat at home?

·  What kinds of food/snacks do you buy with your own money?

·  What sorts of foods do you think of as being ‘healthy’? (Probe to explore why particular foods are seen as healthy)

·  What sorts of foods do you think of as being less healthy or ‘unhealthy’ (and why)?

·  Have you been taught about healthy eating at school?

·  How could people of your age be helped to eat more healthy foods?

3.  School environment and rewards intervention questions:

·  What are your thoughts about the food currently on offer in the canteen?

·  Which foods served in the canteen would you consider to be ‘healthy’? (Why?)

·  Which foods are less healthy? (Why?)

·  What foods do you and your friends normally end up eating at lunchtime (and why)?

·  Why do you think some people choose to bring in packed lunches?

·  Could the canteen food be improved? In what ways?

·  What does your school do to encourage healthy eating?

·  If school implemented a rewards scheme associated with their lunchtime food choices (concept explained to participants in a bit more detail, e.g. points-based scheme similar to approach used on the high street), how would you feel about this?

·  Do you think it would encourage more people to eat in the school canteen?

·  How might this encourage people your age to make better food choices?

·  What types of rewards would people your age particularly like or value?