Performance tests should be required for certification of all public and private school teachers. Tests that are validated against actual job performance--which evaluate actual knowledge, skills, and professional ethics that produce educational and social benefits--should be used. (CJB)

Two aspects of the teacher testing issue are discussed: (1) reasons for assuming that teachers should be tested; and (2) domains in which testing might occur. The effects of testing on teacher quality and public opinion are discussed. Ways that teacher educators can use their influence to improve teacher quality are suggested. (PP)