“... graders (primary education) enrolled in 1,497 classroom of urban schools in Argentina. Multilevel linear...”
Полный текст

“..., in the mathematics and language subjects, at the end of middle school education in Argentina. It has been used, all...”
Полный текст

“..., and the mathematics achievement of students in the last year of high school in Argentina. The data used came from...”
Полный текст