Dear parents,
Thank you very much for your interest in our research. This questionnaire is for middle and high school students. Please take a look at parental consent and the full questionnaire here so that your child can participate in the study.  

Dear students, 
Thank you very much for your interest in our research and for your willingness to help science! For any minor students, we first have to obtain parental permission from your parent. So please send the following letter to your mother, father, or another legal guardian.