Funding for this research was provided by:
Academy of Finland (320162)
First Online: 18 November 2019
Compliance with ethical standards
: Oskari Lahtinen declares he developed the program being studied. Christina Salmivalli declares no conflict of interest.
: Ethical review of the study plan was conducted by the University of Turku Ethics Committee. The Committee approved the plan with minor suggestions to improve the protocol. 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 or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.