Recently there has been an increasing level of interest in subtest scores, or subscores, for their potential diagnostic value. Haberman (2008) suggested a method to determine if a subscore has added value over the total score. Researchers have often been interested in the performance of subgroups--for example, those based on gender or…

Developed by the International Test Commission, the International Guidelines on Computer-Based and Internet-Delivered Testing are a set of guidelines specifically developed to highlight good practice issues in relation to computer/Internet tests and testing. These guidelines have been developed from an international perspective and are directed at…