The Educational Research Service reports annually a statistical measure of salaries of public school system employees called the Composite Indicator of Changes (CIC) in Average Salaries and Wages Paid by Public School Systems. Each edition can be used to analyze trends in average salaries and wages paid to public school employees over the past 10 years. It also can be used to help local school systems compile their own CIC data. The CIC is based on information on 28 of 32 public school employee positions gathered in the National Survey of Salaries and Wages in Public Schools. The positions are grouped into six categories: central-office administrators, school-building-level personnel, classroom teachers, auxiliary professional personnel, and secretarial/clerical personnel. Twelve tables and nine figures are included in the report. Also included are a description of the indicator, source of CIC data, how the indicator is computed, comparisons with the components and the Consumer Price Index, precautions in using the CIC, comparisons by enrollment grouping, local school system comparisons, state comparisons with national, changes over an extended period, how to use the CIC, an example of computation, descriptions of position categories, and calculating the CIC. (JPT)