In large-scale assessments, performance differences across different groups are regularly found. These group differences (e.g., gender differences) are often relevant for educational policy decisions and measures. However, the formation of these group differences usually remains unclear. We propose an approach for investigating this formation by…

This report examines how immigrant students performed, mainly in mathematics and reading, but also in science and problem-solving skills in the PISA 2003 assessment, both in comparison with native students in their adopted country and relative to other students across all countries covered in the report (the "case countries"). In…