Received: 8 December 2019
Accepted: 6 January 2020
First Online: 28 January 2020
Ethics approval and consent to participate
: The survey was an anonymous self-administered questionnaire survey that was conducted after the class. The study subjects received an oral and a written explanation concerning the purposes and methods of the research, that participation was voluntary and would have no relation to university class evaluations or grades, and that data would not be used other than for the purpose of the research. The subjects were informed that collection of the questionnaire form would be regarded as consent to participate in the survey and that the study was approved by the Institutional Review Board of Senri Kinran University (Approval No. 186).
: Not applicable.
: The authors declares that they have no competing interests.