Current exploratory work on one element of one component of the development and evaluation of a comprehensive guidance system has been reviewed. This element, the Personal and Social Development Program (PSDP), is an attempt to assist students in the assessment and modification of their academic and interpersonal behaviors. Designed to operate within an individualized educational context where computer-monitored resources are available, this element is intended as an important part of the prescriptive phase of guidance focusing on problem delineation and correction. Much of the preliminary development work clarifying the objectives and assumptions of the PSDP and implementing the Program with intermediate and secondary students has been completed and is now being field tested. Controlled experimentation of the effectiveness of the prescribed learning experience booklets is planned for the spring and fall of 1969. The main criterion for such experimentation will be the extent to which these PSDP booklets assist students to modify their behavior in order to accomplish their goals related to the broad objectives of the program. (Author)