Multilevel regression analyses were conducted to study the association between dose, appreciation and children’s engagement in interpersonal communication (talking about Taste Lessons with others after the lessons), and change in knowledge, awareness, skills, attitude, emotion, subjective norm and intention towards two target behaviours.
With an average implementation of a third of the programme activities, dose positively predicted change in children’s subjective norm of the teacher after one month.
Interpersonal communication was positively associated with children’s change in five determinants after one month and in attitude and intention after six months.
Process data provide valuable insights into factors that contribute to the effect of interventions in real-life settings. In evaluation settings where programme delivery is not controlled by researchers and thus will vary between different intervention sites, it is especially important to relate process indicators to effect outcomes in order to obtain insight into which factors influenced the obtained results .
Some studies have investigated the association between one or more of these process indicators and the outcome of school-based nutrition interventions, focusing mainly on fruit and vegetable intake .
Teachers and children highly appreciated Taste Lessons.
Whereas teacher appreciation was inversely associated, child appreciation was positively associated with children’s change in awareness, emotion and subjective norm of teachers after one month and in attitude and subjective norm of parents after six months.
Outcome evaluation of Taste Lessons showed significant positive effects on several behavioural determinants towards tasting unfamiliar foods and eating healthy and a variety of foods .
So far, no study on school-based nutrition programmes has included children’s engagement in interpersonal communication as a process indicator.
The current study focuses on the nutrition education programme Taste Lessons () for Dutch elementary schools, which aims to interest children in taste, health and food quality.
To unravel the effect of school-based nutrition education, insight into the implementation process is needed.
In this study, process indicators of Taste Lessons (a nutrition education programme for Dutch elementary schools) and their association with changes in behavioural determinants relevant to healthy eating behaviour are studied.