The major research questions in this investigation are: 1) Does the SIS have concurrent and discriminate validity in a veteran stroke population when compared to the FIM, Rankin, and the SF-36V? 2) What effect does mode of administration have on response rates, bias, data quality, reliability and validity, SIS domain scores, and cost of data collection? 3) What factors differentiate responders and non-responders? 4) Will the SIS scores predict health care costs and utilization?