Links the theory of washback with the broader concept of impact in educational measurement and to the recent debate on construct validity associated with Messick. Notes that for many years it was asserted that language tests negatively impacted teaching and learning, an impact known as washback. (25 references) (Author/CK)

Argues that tests have always been used as a means of political and social control. Maintains that test results are unreliable, especially at the extremes, that their predictive power is weak and that language testers need to be skeptical and need to insist on complete information on candidates' backgrounds for selection decision making. (10…