This study was conducted to: (1) determine the validity of five Educational Testing Service (ETS) tests as measures of the knowledge and academic skills required for specific endorsements of professional public school personnel in Arkansas; and (2) formulate recommendations on minimum qualifying scores for tests that are valid to use for endorsements in Arkansas. Focus was on the potential use of the ETS tests for endorsing teacher certification rather than for selecting personnel for employment. The functions performed in the review of the ETS tests were conceptualized as panel activities. Separate panels reviewed content, job relevance, and knowledge estimation functions for each of the tests. Data were collected at a 1-day meeting of all panels at Hot Springs (Arkansas) on April 28, 1988. A total of 84 panel members reviewed the five ETS tests--Teaching Hearing Impaired, Teaching Visually Impaired, Special Education, Health Education, and Marketing and Distributive Education. In addition, a 14-member standards committee was responsible for deciding test validity for use in initial certification and endorsement and developing recommendations on minimum qualifying scores. It is recommended that: (1) January 1, 1989, be established as the effective date for implementation of the minimum qualifying score requirements in specialized areas in which the ETS tests would be used; and (2) results of use of the five tests be monitored during the first 2 years of program implementation. Nine data tables are provided. (TJH)