The present study introduces and demonstrates a new methodology for item and test bias studies: "moderated differential item functioning (DIF)." This technique expands the DIF methodology to incorporate contextual and sociological variables as moderating or mediating effects of the DIF. Specifically, this paper explores differential…

The current investigation was an exploration of the first year of a multi-year project designed to provide every Grade 3 to Grade 11 student throughout an English school board in Quebec with a laptop computer. Data were collected from 403 elementary and 270 secondary students from the experimental school board and also from 330 students in the…