. Author manuscript; available in PMC: 2017 Jan 4.

Published in final edited form as: Arch Phys Med Rehabil. 2014 Jun 25;95(11):2086–2095. doi: 10.1016/j.apmr.2014.06.005

Table 3.

Summary of Rasch analyses statistics relative to the MFM domain scores in patients with congenital disorders of muscle

MFM Domains	Item Location	Item Fit Residuals	Person Location	Person Fit Residuals	Item-Trait χ² Interaction		PSI	Unidimensionality Independent t Test (%)
MFM Domains	Item Location	Item Fit Residuals	Person Location	Person Fit Residuals	df	P	PSI	Unidimensionality Independent t Test (%)
D1 domain
Initial analysis (13 items)	0.000±1.003	−0.459±1.806	−0.248±2.016	−0.379±0.905	52	<.0001	.92	.085
Final analysis (10 items)	0.000±1.115	0.213±1.369	0.371±1.722	−0.250±0.919	40	.09	.89	.059
D2 domain
Initial analysis (12 items)	0.000±0.731	−0.538±1.560	1.115±1.171	−0.292±0.848	48	<.0001	.82	.027
Final analysis (9 items)	0.000±0.538	−0.633±1.244	1.632±1.496	−0.376±0.817	21	.08	.77	.028
D3 domain
Initial analysis (7 items)	0.000±1.186	−0.798±2.202	1.547±1.083	−0.320±0.739	21	<.0001	.59	.014
Final analysis (6 items)	0.000±1.186	−0.155±0.708	2.358±1.621	−0.326±0.707	10	.29	.67	.017

NOTE. Values are mean ± SD.

Abbreviation: PSI, Person separation index.