Guo, Xiaolin http://orcid.org/0000-0001-5779-5340
He, Surina
Du, Zhenzi
Bi, Tiantian
Luo, Liang http://orcid.org/0000-0001-8538-336X
Funding for this research was provided by:
the Major Project of National Social Science Fund of China (16ZDA229)
the Youth Project of National Social Science Fund of China (17CSH024)
Article History
Accepted: 10 November 2020
First Online: 24 November 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: The present study was approved by the Institutional Review Board of the Collaborative Innovation Center of Assessment toward Basic Education Quality, Beijing Normal University.
: Written informed consent to participate in the study was obtained from one parent of each child.