From the Handbook of the Sociology of Education
By Bryan Caplan
[A]lthough employment tests are often biased against minorities (National Research Council, 1989), employers who use them are more likely to hire minorities than employers who lack such tests (Neckerman & Kirschenman, 1991). Testing may be biased, but the alternatives to testing are worse.
(From Chapter 18, “Interactions Between High Schools and Labor Markets,” by James Rosenbaum and Stephanie Jones)