This document includes reports of three research studies concerning the process of providing supported employment services to persons with disabilities. An introductory chapter by Frank Rusch et al. describes the Illinois Supported Employment Project, noting its target population and its technical assistance and program evaluation services. In "Supported Employment Program Development Degree of Implementation Manual," John Trach, Frank Rusch, and Lizanne DeStefano present an evaluation instrument that identifies five necessary components for establishing and maintaining a supported employment program applicable to all disability levels. In "Validation of an Instrument for Evaluating Supported Employment Programs: The Degree of Implementation," Trach and Rusch propose a supported employment model and an instrument to measure the degree to which programs implement the model, and examine supported employment programs in 33 adult vocational service agencies to determine the relationship between degree of implementation and various program outcomes. "Case Study Analysis of Three Supported Employment Model Programs: The Community, the Agency, and the Program," by Debbie Winking and Lizanne DeStefano, analyzes programmatic issues in urban, rural, and suburban supported employment programs, focusing on specific factors that might contribute to programmatic success. (JDD)