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Predicted robot-based scores plotted against actual robot-based scores for performance error (top left, normalized distance traversed (top right), and mean velocity (bottom left). Cognitive-motor functional groups are also identified by different colors and shapes. The multiple linear regression equation is included at the top of each plot. (**P < .001; LMI = low motor impairment; LCI = low cognitive impairment; MMI = moderate motor impairment; MCI = moderate cognitive impairment).
