CONCEPTUAL AND METHODOLOGICAL ISSUES IN REHABILITATION OUTCOMES FOR ADULTS WHO ARE VISUALLY-IMPAIRED

This article defines some of the conceptual and methodological issues in creating outcome measures in vision rehabilitation. It proposes a m odel to describe rehabilitation outcomes in the context of organizatio nal activities and discusses such methodological problems as the clari fication and measurement of goals, aggregation of data, self-report an d observational data, scaling, frequency of measurements, and causal e vents.