Seddig, Daniel http://orcid.org/0000-0003-1595-6948
Article History
Received: 8 April 2019
Accepted: 24 August 2019
First Online: 16 September 2019
Compliance with Ethical Standards
:
: The author declare that he has no conflict of interest.
: The German Research Foundation (DFG), funding organization of the Crimoc study, obliges project participants to adhere to “Safeguarding Good Scientific Practice”.
: For surveys in schools, school principals agreed that their school participated. Participants and their parents provided the informed consent before first participation in the study.