Although recent research studies have questioned the efficacy of certification testing, Georgia's Department of Education, with help from National Evaluation Systems, developed the Georgia Certification Test in Administration and Certification (GCT). Since 1983, the test has been required for both certification and recertification. The present study used two instruments to assess the importance and usefulness of the GCT's test objectives. The first instrument, the School Operations and Instructional Supervision (SOIS), covered 29 of the GCT's objectives related to management of school operations and instructional supervision. The second instrument, Leadership Overview and Personnel Management (LOPM), covered 33 GCT objectives related to educational leadership and personnel management. Variables for importance and use were measured using a 5-point scale ranging from "strongly disagree" to "strongly agree." Using "Patterson's American Education Directory" (1988), a random sample of 1,023 public school superintendents from all 50 states was selected. There was a 55 percent return rate. Study data show that a majority of respondents perceived all objectives on the SOIS and the LOPM inventories as being relatively high in importance and also frequently used in the superintendency. Study participants supported the underlying efficacy of the GCT's content, lending significant credibility to the test's validity. Several tables and the SOIS and LOPM inventories are included. (22 references) (MLH)