About the Authors

Xiao Liu

Roles Conceptualization, Methodology, Writing – original draft

lx92@nju.edu.cn

Affiliation Institute of Education, Nanjing University, Nanjing, Jiangsu, P. R. China

Cathy Ping Xie

Roles Conceptualization, Writing – original draft, Writing – review & editing

Affiliation Maestro International School, Harbin, P. R. China

Competing Interests

The authors have declared that no competing interests exist.