Recent decades have witnessed a global expansion of private supplementary tutoring, known as shadow education--additional support in academic subjects that takes place outside of regular school hours. Using the data of 55 countries from the Programme for International Student Assessment (PISA) 2022, this study examines the association between…

In the 2012 Programme for International Student Assessment, students from Shanghai, Hong Kong, Macao, and Taipei, where the classroom disciplinary climate of schools was relatively strict, were top performers in mathematics. In this study, two-level linear analyses showed that the classroom disciplinary climate of schools significantly affected…

In this article, the change in examinee effort during an assessment, which we will refer to as persistence, is modeled as an effect of item position. A multilevel extension is proposed to analyze hierarchically structured data and decompose the individual differences in persistence. Data from the 2009 Program of International Student Achievement…