Supportive Educational Material and Randomization of Training Methods
In all cases, students were provided with supportive educational material—tailor-made for their age—in the form of booklets and diaries. Students had the option to use it for “in-class” or “at-home” activities supervised by educators or parents, respectively. To examine the existence of superiority or equivalence in these two training approaches in relation to their effect on students’ dietary habits and overall HRQoL, a block randomization of the schools was performed (block size = 10).