Rasch Analysis of a New Hierarchical Scoring System for Evaluating Hand Function on the Motor Assessment Scale for Stroke

Table 6

Behavioral criteria statistics for short form of hand activities item.

	Dimensionality				Item difficulty
	Infit MnSq	ZStd	Outfit MnSq	ZStd	Measure (standard error)
Timed horizontal line	1.02	0.20	0.91	−0.10	8.75 (0.34)
Timed dots	0.68	−2.00	0.32	−2.30	5.28 (0.25)
Horizontal line	0.78	−1.40	1.67	1.20	1.13 (0.25)
Place penny in cup	1.00	0.00	3.50	3.40	0.33 (0.25)
Pick up pencil	0.63	−3.10	0.23	−2.80	−1.19 (0.24)
Pick up penny (slide to edge)	0.72	−2.50	0.26	−2.50	−2.94 (0.23)
Use remote control	0.96	−0.30	6.84	8.50	−3.97 (0.24)
Slide paper	1.27	1.00	9.90	9.90	−7.39 (0.39)