Skaug, Eirunn https://orcid.org/0000-0002-6600-9476
Waaktaar, Trine https://orcid.org/0000-0002-7118-1983
Torgersen, Svenn https://orcid.org/0000-0003-1886-7692
Funding for this research was provided by:
University of Oslo
Article History
Received: 5 December 2025
Accepted: 26 March 2026
First Online: 11 April 2026
Declarations
:
: The study was approved by the Norwegian Data Inspectorate (ref. 06/00308-2 /CAO) and the Regional Committees for Medical and Health Research Ethics, ref. 2015/4 (19661). RBUP, Eastern and Southern Norway contributed to data collection. The work was supported by the Department of Psychology, University of Oslo, and Eirunn Skaug is funded by Foundation Dam [grant number 426701]. The data collection was supported by the Research Council of Norway [grant numbers 170089, 213722, 213760].