This paper is concerned with the accusations made by such groups as the Association of Black Psychologists in their call for a moratorium on testing, that standardized tests are biased. A biased test measures one trait in one group of people but a different trait in a second group. Evidence about the amount of bias in tests is thin. Bias must be determined by research on each instrument. A commitment to such research is in order. If bias is found, reasonable courses of action include test revision, alteration in interpretation, and discontinuance of testing. (Author/AG)