Herkama, Sanna http://orcid.org/0000-0002-0807-6961
Kontio, Mari http://orcid.org/0000-0003-4512-7446
Sainio, Miia http://orcid.org/0000-0003-4687-1891
Turunen, Tiina http://orcid.org/0000-0002-1641-2347
Poskiparta, Elisa http://orcid.org/0000-0003-2734-5861
Salmivalli, Christina http://orcid.org/0000-0002-6253-146X
Funding for this research was provided by:
Academy of Finland (320162)
University of Turku (UTU) including Turku University Central Hospital
Article History
Accepted: 31 March 2022
First Online: 25 April 2022
Declarations
:
: The procedure followed the ethical standards of the University of Turku Ethics Committee for Human Sciences, Finnish National Board of Research Integrity (TENK, National Advisory Board on Research Ethics 2009), and the Finnish Personal Data Act (523/1999). The data collection procedure was consistent with the Finnish Human Subjects Protection regulations. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments.
: Informed consent was obtained from all individual participants included in the study.
: All authors are certified KiVa trainers, and authors 3, 5, and 6 have taken part in the development of the KiVa antibullying program.