You are free to choose whether your child can participate in the study. If you allow your child to participate in the study, participation can be terminated at any time without any disadvantages for you or your child.

There is no harm associated with the tests and procedures implemented in our study. Data will be treated in accordance with Swiss data protection laws. Data will be anonymized to report study results. Personal data will never be published that individuals can be identified. The data will never be sold. The study has been approved by the local ethics committee of Swiss Distance University Institute (ethics application #2019-12-00002).