Funding for this research was provided by:
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (10DL1C_183166)
Article History
Received: 24 October 2019
Accepted: 8 October 2020
First Online: 27 October 2020
Ethics approval and consent to participate
: The <i>pairfam project was</i> approved by the ethics committee of the Faculty of Management, Economics and Social Sciences of the University of Cologne. Participants provided informed consent. Ethical approval for the current study was obtained from the Philosophical Faculty’s Ethics Committee of the University of Zurich.
: Not applicable.
: The authors declare that they have no competing interest.