This paper follows the evaluation of a system of student performance analyses programs which has advanced from a crude manual system to an easy to use, on-line, interactive system. Recently, emphasis has focused upon the development of a system which requires little computer expertise on the part of the author to obtain a concise, easy to read summary of student performance at each node in the course. A CAI author can quickly examine the student performance listing and decide, based upon the student responses, which specific answer categories need to be added to the code and/or whether the instructional strategy should be modified or augmented. These changes can be noted on the performance listing by the author and passed to a programmer for course modification. The author needs only to wait until another group of students has taken the revised section of the course to compare changes in student performance on the revised version to that on the original version. (Author/VT)