Memphis State University conducted a study for the Tennessee Department of Education to determine the validity of 11 previously unvalidated, extensively revised, or new Educational Testing Service (ETS) tests as measures of the skills and knowledge required for specific initial certification endorsements of public school personnel in Tennessee. Another objective was to formulate data-based recommendations for minimum qualifying scores for any of the tests already established as valid in Tennessee. The study strategy involved groups or panels of teacher education institution personnel (n=99) in the review of test content, groups of local school district professional staff (n=113) in the assessment of job relevance of test items, and the use of both types of reviewers (n=270) in the estimation of correct response rates by minimally qualified certification applicants. A 17-member Standards Committee reviewed the work of the panels and developed recommendations on minimum qualifying scores for examinees from ETS administrations of the tests. In all, 12 tests were judged valid for use in Tennessee. The Standards Committee recommended minimum qualifying scores for four valid tests with extensive data: (1) biology; (2) music education; (3) school guidance and counseling; and (4) special education. Adequate normative data to establish minimum qualifying scores was judged not available for the other valid tests, and the Committee recommended that data be collected until there are sufficient data to establish minimum qualifying scores. Four appendices summarize data analyses. (SLD)