The 1972-73 Michigan Educational Assessment Program (MEAP) provided information on 22 measures of students and schools. While some of the data were gathered in routine Michigan Department of Education reports, student performance data were gathered using the Michigan Assessment of Basic Skills battery, Form VMT during January 1973. The battery consisted of four tests: Word Relationships, Reading, Mechanics of Written English, and Mathematics. For each of the four tests at each grade level, the raw score distribution was transformed into an equated standard score corresponding to 1969-70 assessment tests. While some of the reliability estimates of the brief subtests are not high enough for the assessment of individual students, the estimates for the four tests and the composite scores are sufficiently high for that purpose. None of the tests was unduly speeded. A majority of the fourth grade achievement tests were somewhat difficult for students at grade 4 and a majority of the seventh grade tests were of somewhat less than average difficulty for seventh graders. The tests contain items that possess acceptable to excellent ability to discriminate between high- and low-scoring students. (Author/DEP)