The attractiveness of computer-based tests (CBTs) is due largely to their capability to expand the ways we conduct testing. A relatively unexplored application, however, is actively using the computer to reduce construct-irrelevant variance while a test is being administered. This investigation introduces the effort-monitoring CBT, in which the…

This reply to William A. Mehrens argues that test validity is the central issue in discussing the appropriate role of tests. It states that the procedures used to establish the validity of tests are inadequate because they depend primarily on content validity and not on construct and criterion validity. (JAZ)