Funding for this research was provided by:
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (VI.Vidi.191.135)
Article History
Received: 8 September 2021
Accepted: 25 October 2021
First Online: 16 November 2021
Compliance with Ethical Standards
:
: The authors declare no competing interests.
: The study was conducted in accordance with national and international ethical standards and was approved by the responsible Ethics Committee of the Faculty of Arts and Social Sciences of the University of Zurich.
: From age 7 to age 11 written informed parental consent was obtained. From age 13 participants provided active written informed consent. From age 13 to 15 parents could opt their child out of the study.