Page 109 - ON THE WAY TO HEALTHIER SCHOOL CANTEENS - Irma Evenhuis

SUPPLEMENTARY MATERIALS
Table S6.1. The stated questions to assess the perceived factors affecting implementation, including
the Cronbach’s Alpha.
Factors Items
INDIVIDUAL FACTORS
Questions
1. Role Clarity: For me it is clear what activities I have to do to make the school canteen healthier.
2. Knowledge: I have all the information I need to make the school canteen healthier.
3. Knowledge: I have enough knowledge to make the school canteen healthier.
1. I find it easy to do my tasks regarding the implementation of a healthier school canteen.
2. Other tasks conflict to perform my tasks for the healthier school canteen.
3. I am confident that I can change the offer in the canteen.
4. I am confident that I can increase the number of healthier products in the canteen.
5. I am confident that I can change the accessibility of healthier products of the canteen.
6. I am confident that I can perform my tasks, even if there are barriers (e.g., lack of time/motivation of colleagues)
See below
1. I find it pleasant to do my tasks regarding the implementation of a healthier school canteen.
2. I feel good, when I perform tasks regarding the healthier canteen.
3. I feel myself stressed/sad/ nervous, when I perform tasks regarding the healthier canteen.
1. The effects of a healthier school canteen are visible for me.
2. Performing my tasks regarding a healthier school canteen gives me many advantages.
Answer Baseline Options
5-point <0.60 Scale
5-point >0.70 Scale
After Inter- vention
Conclusion
Analyse separate
Analyse together
Knowledge
Self-efficacy
3 items
6 items
<0.70
>0.70
6
Attitude-Belief and Outcome expectations
Attitude-Beliefs
Attitude- Outcome expectations
9 items
3 items
6 items
5-point >0.70 Scale
5-point >0.70 Scale
5-point >0.70 Scale
>0.70
<0.60
>0.60
Analyse together
Analyse to- gether with outcome expecta- tions
Analyse together with beliefs
table continues
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