Quantitative process data
After the end of the intervention period, the feedback sheets and memory protocols were finally analysed. Quantitative data from the memory protocols and feedback sheets were analysed descriptively (frequencies and proportions, means, and measures of dispersion) using IBM SPSS Statistics, version 22.0. Individual items from the questionnaires were scored using five-point Likert scales. Due to the small cell frequency of the first and last category, the categories “very important” and “important” as well as “less important” and “unimportant” were combined into one category each.