Are salary and wage trends in public education keeping up or falling behind in the race with inflation? Are salary increases for central-office administrators and school building administrators keeping pace with increases received by classroom teachers and support personnel? How do overall salary and wage changes in one school system compare with similar changes throughout a state and across the nation? To help answer these and related questions, Educational Research Service developed a statistical measure for gauging and comparing overall changes in salaries and wages paid by school systems. This measure is the Composite Indicator of Changes in Average Salaries and Wages Paid by Public Schools (CIC), which was published annually by ERS. This report provides a full description of the CIC, how it is compiled on a national and state basis, and how local school systems can compile CIC data for use in their salary and wage decision making. Procedures, work sheets, and outline graphs for making such local computations and comparisons are included.