Inspired by complex system theory, this study adopts a multilevel piecewise regression model to examine the relationship between homework time and the development of students in different grades using a large-scale testing database in China. The results indicate that the relationship between homework time and students' performance is positive when…

Homework is a self-regulated activity that constitutes a large proportion of learning time. In mathematics, how long is the optimal homework time for achievement development and how to improve homework time efficiency have long been questions. The study examined how mathematics homework time was related to mathematics achievement among Chinese…

In July 2021 the Chinese Government unexpectedly released what has become known colloquially as the 'Double-Reduction' policy. The policy decreed the reduction of homework pressure on students and greater control of private tutorial companies. In this paper, we set out to understand why the Chinese central government launched the…

With an educational issue that has caught the attention of many countries in the world (study load), a population of 8th graders from a typical Chinese metropolitan city (40,536 from 118 schools), and an advanced statistical strategy (multilevel piecewise regression), we examined whether there was a turning point in terms of the effects of study…

The present study used a multilevel approach to investigate the influence of four clusters of variables (i.e., demographic, homework, teacher, and parent) on three types of math homework purposes (i.e., academic, self-regulatory, or approval-seeking) perceived by 3,018 8th graders in China. Results revealed that each of the three math homework…