This project is concerned with the development and implementation of some new statistical techniques that will facilitate a continuing input of information about the student to the instructional manager so that individualization of instruction can be managed effectively. The source of this informational input is typically a short criterion-referenced test specific to one or more behavioral objectives being taught. The fundamental issue is one of test length. Part I of this project is a brief and broad structuring of the problem and work that has been done to solve it. Part II consists of a broad overview of the project in which each prepared paper is concisely stated. Part III discusses these papers and the new techniques and methods provided by each paper. The papers are included in four appendices; some are not available here due to copyrights but a journal reference is given. The four papers in Appendix I are directly concerned with the implementation of new methods within individually Prescribed Instruction. Appendix II deals with possible further developments in decision-theory application. Appendix III treats the core-mathematical theory underlying the proposed applications, and Appendix IV deals with the computer problems involved in such applications. (RC)