The 1999-2001 Total Academic Performance Index (see description ) is simply an average across several standardized tests. All of the PACT scores (third through eighth grade with math and language arts subtests in each year), the Exit Exam scores (given in tenth grade with reading, writing and math subtests), and the average SAT scores (math plus verbal) are used in its computation.

The resulting index has a theoretical mean of 50 (sample mean of 51.02) and the 86 district scores range from 0.0 (actual minimum 1.24) to 100 (actual maximum 99.06). A score of 75 would indicate that the district is among the top 25% best performing districts, or that it is performing better than 75% of the districts.

	1999-2001 Total Academic Performance Index:  Description (read this first)
	"Click and Find" Map of 1999-2001 Performance Results by School District
	Total Academic Performance Index:  Summary Table of District Scores
	SC School District Rankings 1999-01

* South Carolina Standardized Tests: CSAB, PACT Series, Exit Exam, SAT.

Cognitive Skills Assessment Battery (CSAB): Used to measure student readiness to begin the first grade school curriculum, reported on this site in terms of percentages of district students meeting state standards. Palmetto Achievement Challenge Test (PACT): Designed to measure the achievement levels of South Carolina students in grades three through eight, replacing the Basic Skills Assessment Program (BSAP) in 1999, reported on this site in terms of percentages of district students meeting state standards. Exit Examination: First administered to students in the spring of their tenth-grade year, includes three subtests (reading, mathematics, and writing), reported on this site in terms of percentages of district students meeting state standards. Scholastic Aptitude Test (SAT): Standardized composite score of performance on math and verbal sections, reported on this site in terms of average district score relative to the state average.