Hübner, Nicolas http://orcid.org/0000-0003-3528-8086
Wagner, Wolfgang http://orcid.org/0000-0001-9781-4630
Zitzmann, Steffen http://orcid.org/0000-0002-7595-4736
Nagengast, Benjamin http://orcid.org/0000-0001-9868-8322
Funding for this research was provided by:
Eberhard Karls Universität Tübingen
Article History
Accepted: 6 October 2022
First Online: 24 January 2023
Declarations
:
: All procedures involving human participants were conducted in accordance with the ethical standards of the institutional or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Participation in the study was voluntary, and written informed consent to participate in this study was provided by participants’ legal guardians. The study “Tradition und Innovation: Entwicklungsverläufe an Haupt- und Realschulen in Baden-Württemberg und Mittelschulen in Sachsen” (TRAIN) was initiated and funded by grants from the Ministries of Education in Baden-Württemberg and Saxony, Germany.
: The authors declare no competing interests.