The aim of this research is to determine the variables at school and student level that affect together the maths-reading-science performances of Turkish students that participated in PISA 2009-2012-2015 practices. Within ...

The aim of this study is to research whether or not the attitude items towards sciences in PISA 2015 student questionnaire including differential item functioning (DIF) in terms of language and culture. Generalized Mantel ...

The purpose of this study is to determine whether there is DIF in the PISA 2015 reading section items from Singapore, Australia and the United States by employing the Mantel-Haenszel and the Logistic Regression methods. ...