Developed as an easy to use reference on test data for Montgomery County Public Schools (MCPS), this report is divided into two sections: analysis of county data and analysis of school data. Features of the report are as follows: (1) a longitudinal analysis of performance of students tested in MCPS in 1976, 1978 and 1980; (2) school results broken out for students tested in a school more than once and for those transferring into and out of the school; (3) breakdowns of county test results by racial/ethnic and sex groups; (4) College Board results by school; and (5) a graphic presentation of the range of test performance in each school. Appendices include the raw data used for the countywide analysis, and a glossary of the statistical and testing terms used throughout the report. (Author/GK)