This paper is meant to highlight the occurrence of Simpson's Paradox when using aggregated data obtained from two IEA studies in Israel, while ignoring the effect of a powerful intervening variable in the local context--the ethnicity factor. It will demonstrate faulty conclusions regarding either the absence of relationships between a contextual…

Background/Context: Many children of immigrants are not enrolled in high schools that sufficiently meet their needs, and subsequently, many are not making a successful transition to, and/or successfully completing, higher education. As immigration grows in the United States, educators and policy makers must understand how the educational processes…

Discussion of problems students have with learning about Newtonian dynamics and kinematics focuses on the assumption that learning is promoted through confronting students with their own misconceptions. A computer-based modelling environment--DYNLAB--is explained, and a study conducted with high school boys in Scotland to test it is described. (29…