The ninth report of the Michigan Educational Assessment Program contains the technical information needed to evaluate the instruments and techniques used to measure and report the status of student achievement and attitude. This report is intended for people with expertise in psychometrics. The Program is described in the first section of the report. The second section describes the assessment battery and contains two sub-sections that deal, respectively, with its non-cognitive and cognitive parts. Each sub-section presents a description of the instrument(s) involved, the derivation of reported scores, and the psychometric properties of the measures. Appendix A contains raw and standard score distributions, conversion parameters, and percentile ranks for the tests of basic skills. Appendix B contains basic skills test question classifications. Appendix C contains basic skills test content specifications. (For related document, see TM 002 326-328, 330.) (Author/KM)