. 2017 Nov 8;4:189. doi: 10.3389/fmed.2017.00189

Table 4.

The psychometric properties of the Malay 5D-itching scale.

Domain	Cronbach’s alpha for overall instrument	Corrected item total correlation	Cronbach’s alpha if item deleted	Test (n = 70)	Retest (n = 64)	Intra class correlation coefficient (ICC)^*
Domain	Cronbach’s alpha for overall instrument	Corrected item total correlation	Cronbach’s alpha if item deleted	Median	Median	Intra class correlation coefficient (ICC)^*
Duration	0.861	0.62	0.84	1.00	1.00	0.94^*
Degree		0.64	0.84	3.00	2.00	0.93^*
Direction		0.65	0.84	2.00	2.00	0.91^*
Disability
Sleep		0.86	0.86	1.00	1.00	0.69^*
Leisure/social life		0.69	0.83	1.00	1.00	0.97^*
House work		0.71	0.82	1.00	1.00	0.97^*
Work/school		0.68	0.83	1.00	1.00	0.82^*
Distribution		0.76	-	1.00	1.00	0.61^*

*Statistically significant at p < 0.05; thighs, lower leg, and forearm are the most affected body parts reported by respondents.