Validity and reliability of new instruments for measuring patient satisfaction with removable dentures, Arabic Version

Table 3 Correlation matrix between the items

	Items of the upper jaw questionnaire, N = 109									Items of the lower jaw questionnaire, N = 126
	I^a1	I2	I3	I4	I5	I6	I7	I8		I1	I2	I3	I4	I5	I6	I7	I8
I1	1.00	0.71	0.67	0.57	0.42	0.75	0.42	0.46	I2	1.00	0.62	0.68	0.62	0.60	0.63	0.40	0.58
I2	0.71	1.00	0.85	0.67	0.63	0.69	0.48	0.40	I3	0.62	1.00	0.68	0.49	0.49	0.76	0.32	0.42
I3	0.67	0.85	1.00	0.62	0.57	0.68	0.46	0.33	I4	0.68	0.68	1.00	0.72	0.63	0.68	0.61	0.58
I4	0.57	0.67	0.62	1.00	0.56	0.63	0.33	0.62	I5	0.62	0.49	0.72	1.00	0.64	0.64	0.55	0.67
I5	0.42	0.63	0.57	0.56	1.00	0.50	0.41	0.36	I6	0.60	0.49	0.63	0.64	1.00	0.50	0.45	0.55
I6	0.75	0.69	0.68	0.63	0.50	1.00	0.59	0.54	I7	0.63	0.76	0.68	0.64	0.50	1.00	0.51	0.56
I7	0.42	0.48	0.46	0.33	0.41	0.59	1.00	0.33	I8	0.40	0.32	0.61	0.55	0.45	0.51	1.00	0.48
I8	0.46	0.40	0.33	0.62	0.36	0.54	0.33	1.00	I1	0.58	0.42	0.58	0.67	0.55	0.56	0.48	1.00
Determinant = 0.005									Determinant = 0.005

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