Statistical analysis
SPSS™ 27 and the programming language R are used as software for the statistical analyzes. In the first step at baseline, the data analysis is primarily descriptive according to sample characteristics and outcome measures. Subgroup analyzes between intervention and control group are made using ChiIf the proportion of missing values (e.g. "don’t know", no answer) is lower than 5%, these will be excluded from the analysis in accordance with the GESIS guidelines [