Article History
Accepted: 16 June 2021
First Online: 27 June 2021
Declarations
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the university research review committee of the affiliation of the authors and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The study was approved by the ethical review committee of Graduate School of Education and Human Development, Nagoya University, Japan (Reference number: 19-1388; date: February 13, 2020).
: Informed consent was obtained from all individual participants included in the study and also from their parents.
: The authors affirm that research participants and their parents provided informed consent to publish their data in a combination of information from all respondents without specifying any specific individual.