The vast amount of research conducted on student persistence over the past thirty years is indicative of the continuing and evolving interest in retention of students. Framed through multiple perspectives, this retention research is driven by the fact that more students leave institutions without graduating, year after year. Much more than an…

Research efforts have established that the Mantel-Haenszel procedure (MHP) is an effective method for detecting the presence of test items exhibiting differential item functioning (DIF). While the MHP has been advocated for situations where item response theory based methods may not be usable, recent findings have suggested that the performance of…