Sidler, Petra http://orcid.org/0000-0003-0243-6337
Baysu, Gülseli http://orcid.org/0000-0001-6298-0946
Kassis, Wassilis http://orcid.org/0000-0002-7235-2182
Janousch, Clarissa http://orcid.org/0000-0002-4160-9758
Chouvati, Raia http://orcid.org/0000-0002-7661-9964
Govaris, Christos http://orcid.org/0000-0002-0751-1036
Graf, Ulrike http://orcid.org/0000-0002-1497-0919
Rietz, Christian http://orcid.org/0000-0002-7057-4937
Funding for this research was provided by:
nccr – on the move (51NF40-182897)
Article History
Received: 15 December 2021
Accepted: 13 March 2022
First Online: 6 April 2022
Compliance with Ethical Standards
:
: The authors declare no competing interests.
: The study design was ethically approved in all three countries: In Germany, the Ministry of Education, Youth, and Sports Baden-Württemberg, the Common Ethics Committee of the University of Education Heidelberg, and the SRH (Stiftung Rehabilitation Heidelberg) endorsed the project. In Greece, the General Assembly of the Pedagogical Department of Primary Education of the University of Thessaly recommended the study. In Switzerland, the Cantonal Bureau for Education in the Cantons of Aargau, Basel-Stadt, and Solothurn, and the Ethics Committee of the Faculty of Arts and Social Sciences of the University of Zurich approved the study.
: Participants’ legal guardian or next of kin provided written informed consent to participate in the study. Additionally, written informed consent was obtained from the adolescents themselves.