Funding for this research was provided by:
Fundamental Research Funds for the Central Universities
Beijing Normal University Education Foundation
Received: 15 August 2020
Accepted: 1 October 2020
First Online: 9 October 2020
Ethics approval and consent to participate
: This study was approved by Beijing Normal University, the Ethics Committee of the Faculty of Psychology. All participants and their parents were informed of the objectives of the study and completing the survey implied consent to participate in the study.
: Not applicable.
: The authors declare that they have no competing interests.