This work was supported by the Major Program of National Social Science Foundation of China (grant number 11&ZD151), the Humanities and Social Sciences Research Funds from the Ministry of Education of China (grant number 15YJA190001), the Fundamental Research Funds of Central China Normal University (grant number CCNU14Z02004), and the Research Program Funds of the Collaborative Innovation Center of Assessment toward Basic Education Quality at Beijing Normal University (grant numbers 2016-04-003-BZK01, 2016-04-009-BZK01).