Page 65 - ON THE WAY TO HEALTHIER SCHOOL CANTEENS - Irma Evenhuis

Element
Step 1: Development (expert meeting n=19; interviews n=6; second expert meeting n=10)
- Counting facings in vending machines
- Experts suggested to add “not applicable” to the response options
- Reformulations were suggested
- 3 Price items were proposed, but reduced
to 1 on advice of experts, because infeasible/too costly for practice
- 2 Items about prominent placing were split into three to improve comprehensiveness
- A portion size item was suggested and rejected
- Finally, 10 items were proposed
- A score per construct and an awarded level
- A general advice and a specific advice with all entered and classification of products
- Portion size and pricing were added to the advice
Step 2: Content validity of paper scan (n=4)
- Counting facings on displays
(racks, shelf) was infeasible. In coolers facings was feasible - Counting facings in vending machines was feasible
- Item for attractive presentation of fruit and vegetables was added [108]
- 11 Items remained
Step 3: Pilot testing the online scan
Accessibility criteria
Translation into online scan
machines” to increase clarity.
- The combination of facings and numbers in displays was technically infeasible, so all products need to be counted
- Three items for prominent placing were reduced to
one item, to ensure equal contribution of placing regarding all accessibility items
- 9 Items remained
Pilot testing the online scan (n=4)
- Numbers of product above 30 go in steps of 5.
- Add examples in text or picture, of the criteria
- Questions to 4 assess whether
products are
placed on the
most eye- catching spot is reformulated
- Improved the advises of the accessibility criteria
Results and feedback
1The Dutch Branded Food database is an existing database with most of the Dutch sold food/drink products, including their nutritional value [167].
RESULTS
Measurement methods, items and response options belonging to the four constructs (basic conditions, availability on display and in vending machines, and accessibility) were proposed, evaluated and refined in collaboration with experts, end-users and the project team during several rounds. The proposed items and main revisions during development are shown in Table 4.1.
1. Development of the paper draft of the Canteen Scan
During the first step, experts recommended to add a separate result and feedback section to make actions to improve the canteen very clear for people in practice. Experts agreed to
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