Lambrich, Johanna
Muehlbauer, Thomas
Funding for this research was provided by:
Universität Duisburg-Essen
Article History
Received: 10 November 2022
Accepted: 15 February 2023
First Online: 23 February 2023
Declarations
:
: Ethical approval was given by the Human Ethics Committee at the University of Duisburg-Essen, Faculty of Educational Sciences. Participants’ and parents’ written informed consent were obtained prior to the start of the study. All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.