Table 5.

Likert scaling assumptions using revised items.

Scale	Range of item-scale correlations  (assumptions 1, 4)	Item scaling tests (assumption 2) Success/total scaling success rate	Measures of equal item variance (assumption 3)		Cronbach's alpha (assumption 5)
			Scott's homogeneity	Intraclass correlation
First contact utilization	0.56–0.75	15/15	0.20	0.17	0.38
First contact accessibility	0.87–0.91	10/10	0.60	0.58	0.74
Ongoing care	0.78–0.83	15/15	0.47	0.47	0.72
Comprehensiveness	0.67–0.77	20/20	0.26	0.30	0.58
Coordination of services	0.70–0.77	15/15	0.32	0.26	0.57