Teacher tenure is a problem. Teacher tenure is a solution. Fracking is safe. Fracking causes earthquakes. Our kids are over-tested. Our kids are not tested enough. We read claims like these in the newspaper every day, often with no...

"Differential Item Functioning" von Howard Wainer ist ein umfassendes Werk, das sich mit der Analyse und Interpretation von Differentieller Itemfunktion (DIF) in psychometrischen Tests befasst. DIF tritt auf, wenn Testfragen für...