This study explored the mathematics achievement profiles of the countries participating in TIMSS 2015 based on the TIMSS assessment framework categories. More specifically, observed and expected performances of countries in the framework categories were compared to determine the relative strengths and weaknesses of countries in the respective item…

Few developing countries participate in external educational evaluations. Information gaps on education quality make it imperative to expand such evaluations. Furthermore, international comparability across different evaluations should be improved. In addition, data from evaluations must be combined with data on access or coverage. Finally,…

This dissertation explores how country-level cultural values are associated with gender differences in the enrollment in and completion of science, technology, engineering, and mathematics (STEM) Massive Open Online Courses (MOOC), national achievement in mathematics and science, and students' science achievement. Study 1 explored how gender-equal…

In most countries, students' socioeconomic status (SES) is strongly related to their educational achievement: the higher a student's SES, the higher his or her achievement scores, and vice versa. This lack of equity in student outcomes is of great concern to policy makers because educational achievement should not depend on family background. This…

Although countries worldwide are emphasizing the importance of science education for technological development and global economic competition, comparative findings from standardized international student assessments reveal a huge gap in science scores between developed and developing countries. Certain developed economies too have made little…

In 19 (sub)samples from seven countries (United States, Austria, Germany, Costa Rica, Ecuador, Vietnam, Brazil), we analyzed the impact of parental education compared with wealth on the cognitive ability of children (aged 4-22 years, total N = 15,297). The background of their families ranged from poor indigenous remote villagers to academic…