Funding for this research was provided by:
European Research Council (ERC StG18; action number: 801980)
Received: 3 November 2020
Accepted: 17 November 2020
First Online: 8 December 2020
Ethics approval and consent to participate
: For all research activities in this project, ethics is an integral part from beginning to end. In addition to the approval by the European Research Council Executive Agency, the thorough ethical evaluation also included ethical evaluation and approvals of the project by.1. The ethics committee of the Faculty of Psychology and Educational Sciences, University of Munich (LMU).2. The department responsible for the implementation and management of research projects in public day care centres in Munich: The Department of Education and Sports, Munich.3. The ministry responsible for the implementation and management of research projects in public schools in Bavaria: The Bavarian Ministry of Education.All research actions in this project adhere to the ethical standards of data protection regulations according to Art. 13 EU-DSGVO. All participating families, childcare centre educators, directors of childcare centres, primary school teachers and primary school directors in this project were informed about these data regulations. All participants gave their written consent to these regulations of data handling and processing. Further, written and informed consent to participate in our study will be obtained from the parents of the participants in our study.
: All participants were also informed that their participation is voluntary and that all data will be pseudonymised and published findings will be anonymised. All participants gave their written consent to these regulations of data handling and publishing.
: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.