This "Assessing and Improving Student Organization" (AISO) program is intended as a guide for leaders of student-led college organizations. It is designed to promote the assessment of their organization by leaders and members, help them with planning and improvement, and assist them in responding to reviews by governing bodies and national chapters. Apart from affording their members a structure for engaging with peers in activities of mutual interest, collegiate organizations provide them with hands-on opportunities for enhancing understanding of groups and organizations, and how they operate, and for acquiring and practicing the leadership, communication and collaborative skills that are so important for personal and professional effectiveness throughout life. This "Guide" provides leaders with a structure for analyzing the workings of their organization. It will generate insights to help them determine how effectively the organization is functioning, identify strengths and weaknesses, devise priorities and plans for future improvement, and in the process, promote their reflective learning. The AISO process constitutes an ideal laboratory to practice and refine their capabilities for analyzing and improving groups and organizations. The program consists of three elements: a Guide for Students, a Student Workbook, and a CD-ROM for facilitators. [For the related records, see "Student Workbook" (ED515061) and "Resources for Facilitators CD-ROM" (ED515066).]