Table 2.

Item statistics Patient Scale

Entry number-items	Count	Measure	Infit MNSQ	Outfit MNSQ
1-Pain	1,417	0.88	1.55	1.40
2-Pruritus	1,421	0.21	1.45	1.33
5-Thickness	1,384	−0.12	0.74	0.71
6-Surface roughness	1,385	−0.16	0.84	0.80
4-Pliability	1,395	−0.25	0.78	0.77
3-Color	1,400	−0.56	1.06	1.12

MNSQ mean square

* Infit or outfit reasonable range of 0.5–1.7