About the Authors

Akina Yamaoka

Roles Data curation, Formal analysis, Investigation, Writing – original draft

akina.yamaoka@gmail.com

Affiliation Department of Human Welfare Counseling, Okinawa International University, Ginowan, Okinawa, Japan

Shintaro Yukawa

Roles Conceptualization, Methodology, Writing – review & editing

Affiliation Faculty of Education, Hakuoh University, Oyama, Tochigi, Japan

Competing Interests

The authors have declared that no competing interests exist.