Jeppesen, Lise Sohl http://orcid.org/0000-0002-7877-6963
Damsgaard, Linn http://orcid.org/0000-0001-6705-1142
Stolpe, Malene Norup http://orcid.org/0000-0002-5150-9048
Melcher, Jesper Ninn Sandfeld http://orcid.org/0009-0005-8080-9364
Wienecke, Jacob http://orcid.org/0000-0001-9786-4689
Nielsen, Glen http://orcid.org/0000-0003-2854-7182
Smedegaard, Søren http://orcid.org/0000-0002-5451-9743
Henriksen, Anne Husted http://orcid.org/0000-0003-4017-4729
Hansen, Rasmus Ahmt http://orcid.org/0000-0003-1383-2992
Hillman, Charles H http://orcid.org/0000-0002-3722-5612
Tammelin, Tuija H http://orcid.org/0000-0002-1771-3977
Resaland, Geir K http://orcid.org/0000-0002-9102-7609
Daly-Smith, Andrew http://orcid.org/0000-0003-4830-9376
Bugge, Anna http://orcid.org/0000-0002-8345-1434
Funding for this research was provided by:
Copenhagen University
Article History
Received: 3 September 2023
Accepted: 14 February 2024
First Online: 9 March 2024
Declarations
:
: Informed consent was obtained from all parents/legal guardian(s) of participating children and participating teachers in a written form (see Supplementary Material InternalRef removed). The study has been approved by the local Ethical Committee at University of Copenhagen (protocol: 504 − 0333/22-5000), and will be carried out in accordance with the Helsinki Declaration. The trial has been registered 25th of October 2022 in ClinicalTrials.gov, NCT05602948 and any important protocol modifications will be registered and verified here.
: Not applicable.
: None of the involved researchers have any financial or other competing interest in the trial. The academic test company Hogrefe has no commercial interest in the study.