In tracing two Chinese rural middle school classes for 3 years, this study found the positive impact of adopting the algorithm-based mobile short video platform Douyin on rural adolescents' intrinsic motivation. The application's broad adoption has reshaped the social processes supporting adolescent users' intrinsic motivation and spontaneous…

Based on data collected from middle school students in a U.S. school (N = 159) and a Chinese school (N = 183), this study compared Internet use in school and at home between American students and Chinese students, explored what affected students' use of the Internet, and examined how students' Internet use related to their learning. Results reveal…

Background: The prevalence of smoking among Chinese adolescents has dramatically increased in recent years. The purpose of this study was to examine the differences in smoking-related knowledge, attitudes, and behaviors among Chinese students in 3 types of secondary schools. Methods: This cross-sectional study was conducted among 3957 students of…

A theoretical framework about protective factors (models protection, controls protection, support protection) and risk factors (models risk, opportunity risk, vulnerability risk) was employed to articulate the content of 4 key contexts of adolescent life--family, peers, school, and neighborhood--in a cross-national study of problem behavior among…

Using standardized tests and surveys of eighth graders in China and the United States, this study explores the relationships among family income, parenting, home environment, and mathematics achievement. Focusing on Chinese only children and American children with no more than one sibling, the study found that the mathematics achievement of…