The problem of this study was to develop an analytical and descriptive technique for rating the performances of student teachers. In order to arrive at a solution to this problem, the following sub-problems were to be solved; namely, 1. To develop and validate a set of criteria for describing and rating the performances of student teachers; 2. To develop and validate a descriptive rating scale utilizing those criteria; 3. To develop a technique for using this descriptive rating scale; 4. To establish reliability of the instrument and to demonstrate the ability of the instrument to perform its intended functions.