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

Table 3

Person-behavioral criteria map for hand movements.

Hand movements
Higher ability people	Logits	More difficult behavioral criteria
*##########	7
*########		Finger intrinsic against gravity
*	6
		Timed thumb opposition
*
		Finger intrinsic gravity eliminated
*#######
	5
*	4
*
*###########
	3
	2
		Wrist radial dev.against gravity
*###
	1
*##
	0	Wrist radial dev.gravity elim.
*#
#		Wrist extension against gravity
	−1	Finger extension gravity elim.
		Finger extension against gravity
		Wrist extension gravity elim.
*#		Forearm supination
*
*#	−2
*#
		Any thumb motion
	−3
*#
		Forearm pronation
		Finger flexion against gravity
*
	−4	Finger flexion gravity eliminated
*
*	−5
Lower ability people	Logits	Less difficult behavioral criteria

In this map of person abilities and behavioral criteria, each # indicates 4 people and each * indicates 1–3 people. These representations of person abilities are on the left and behavioral criteria are on the right. Lower ability people and easier behavioral criteria are at the bottom of the map and higher ability people and more difficult behavioral criteria are at the top of the map.