1. Jing Hengyi School of Education, Hangzhou Normal University, Hangzhou 311121, China
2. Zhejiang Philosophy and Social Science Laboratory for Research in Early Development and Childcare, Hangzhou Normal University, Hangzhou 311121, China
3. Yang Ling Zi School, Hangzhou 311121, China
4. Gevirtz Graduate School of Education, University of California, Santa Barbara, CA 93106, USA