Many scales contain both positively and negatively worded items. Reverse recoding of negatively worded items might not be enough for them to function as positively worded items do. In this study, we commented on the drawbacks of existing approaches to wording effect in mixed-format scales and used bi-factor item response theory (IRT) models to…

In this study, we provide a review of the status of science and technology education. It addresses the achievements of students in Israel who attend high schools with student bodies that are primarily Arabic speaking. It is generally recognized that the achievements of the Israeli students in international examinations are relatively low. When…