This volume is a guide for assessing children with dual sensory or severe impairments between the ages of 6 and 15. It presents a functional-ecological assessment process that is individually determined, contextually based, and leads directly to intervention. It begins by discussing the benefits of this model over standardized assessment procedures and describes the 4-step assessment process: determine student and family goals, conduct an ecological analysis of critical activities, conduct a discrepancy analysis of critical activities, and develop a clear profile of the student. The manual then describes how to translate assessment results into programming decisions through the following steps: (1) target critical skills for instruction; (2) decide whether to teach the skill or adapt the steps; (3) specify exactly how skills will be learned; (4) decide where and when to teach; (5) and analyze effectiveness of intervention. The manual then discusses steps for guiding intervention processes. Appendices include suggested readings, suggested assessment instruments, a glossary, sample parent/family survey intervention forms, functional-ecological assessment forms and samples, and an instructional task analysis form. (Contains 40 references.) (CR)