This teacher's edition of training materials on bilingual program planning, implementation, and evaluation focuses on testing instruments. The guide is part of a series directed at bilingual educators and intended for use in institutions of higher education and inservice teacher education programs. Training objectives, a pretest and posttest, and instructional materials and activities are included. The topics covered include (1) the role of testing in bilingual education programs, (2) norm-referenced and domain-referenced language proficiency tests, (3) indirect and direct measures of language proficiency, (4) test validity and reliability, (5) norms, (6) reviews of nine popular language assessment instruments, and (7) examples of direct measures of language. (RW)