There is an increased interest in exploring the interaction between knowledge of foreign languages, Reading and Mathematics and correlation of students' achievement in Hungary (e. g. Szirmai, 2003; Garami, 2009; Hegedus & Sebestyén, 2019). Special learner groups are rarely put in the focus of research, therefore in our paper, we examine…

Principals (policy makers) have debated the progress in U.S. student performance for a half century or more. Informing these conversations, survey agents have administered seven million psychometrically linked tests in math and reading in 160 waves to national probability samples of selected cohorts born between 1954 and 2007. This study is the…

The PISA 2009 data (in reading) investigated the effectiveness of one year of schooling in seven countries: Russia, Czech Republic, Hungary, Slovakia, Germany, Canada, and Brazil. We used an instrumental variable, which allowed us to estimate the effect of one year of schooling through the fuzzy method of regression discontinuity. The analysis was…