Funding for this research was provided by:
Opetus- ja Kulttuuriministeriö (OKM/62/626/2016)
Text and Data Mining valid from 2019-02-06
Received: 20 August 2018
Accepted: 24 January 2019
First Online: 6 February 2019
Ethics approval and consent to participate
: The study follows the principles of the Declaration of Helsinki. The study protocol has been approved by the research ethics committee of the University of Jyväskylä (ref no. 2017/12/13). Written informed consent will be sought from participating teachers, students, and students’ parents prior to the commencement of the trial. All participants will be informed that they are allowed to withdraw from the study at any time without prejudice, and have their data deleted. During the study, all travel and activities of research staff and participating teachers will be covered by accident insurance. In case of important protocol changes, a new ethical statement will be requested and new informed consent procedures will be delivered to participants.
: Not applicable.
: The authors declare that they have no competing interests.
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