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

Table 2

Behavioral criteria statistics for hand activities item.

	Dimensionality				Item difficulty
	Infit MnSq	ZStd	Outfit MnSq	ZStd	Measure (standard error)
Timed horizontal line	1.02	0.2	0.88	−0.20	9.20 (0.34)
Timed dots	0.70	−1.8	0.50	−1.80	5.74 (0.25)
Horizontal line	0.76	−1.4	1.79	1.30	1.41 (0.26)
Make a mark	0.61	−2.8	0.45	−1.40	0.54 (0.26)
Penny in cup	1.18	1.1	4.31	4.30	0.54 (0.26)
Pick up pencil	0.70	−2.5	0.25	−2.50	−1.04 (0.24)
Pick up penny (slide to edge)	0.82	−1.6	0.35	−2.30	−2.74 (0.22)
Pick up bottle	0.89	−0.9	0.45	−2.00	−2.94 (0.22)
Use remote control	0.99	−0.1	8.20	9.70	−3.71 (0.23)
Slide paper	1.37	1.4	9.90	9.90	−6.99 (0.37)