![]() ![]() ![]() SIS domains are responsive to change due to ongoing recovery. SIS domain scores discriminated across 4 Rankin levels. The participation domain was most strongly associated with SF-36 social role function. When the domains were compared with established outcome measures, the correlations were moderate to strong (0.44 to 0.84). The intraclass correlation coefficients for test-retest reliability of SIS domains ranged from 0.70 to 0.92, except for the emotion domain (0.57). Results-Each of the 8 domains met or approached the standard of 0.9 α-coefficient for comparing the same patients across time. The mixed model procedure was used to evaluate responsiveness of the SIS domain scores to change. The validity of the SIS domains was examined by comparing the SIS to existing stroke measures and by comparing differences in SIS scores across Rankin scale levels. We evaluated internal consistency and test-retest reliability. Twenty-five subjects had a replicate administration of the SIS 1 week after the 3-month or 6-month test. Subjects with mild and moderate strokes completed the SIS at 1 month (n=91), at 3 months (n=80), and at 6 months after stroke (n=69). Methods-Version 2.0 of the SIS is a self-report measure that includes 64 items and assesses 8 domains (strength, hand function, ADL/IADL, mobility, communication, emotion, memory and thinking, and participation). This study characterizes the psychometric properties of the Stroke Impact Scale (SIS) Version 2.0.
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