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

Table 6 Cronbach's Alpha; upper jaw questionnaire and lower jaw questionnaire

Items	Upper jaw questionnaire, N = 109			Lower jaw questionnaire, N = 126
Items	Corrected Item-Total Correlation	Squared Multiple Correlation	Cronbach's Alpha if Item Deleted	Corrected Item-Total Correlation	Squared Multiple Correlation	Cronbach's Alpha if Item Deleted
I1	0.74	0.64	0.89	0.75	0.59	0.90
I2	0.83	0.79	0.88	0.68	0.68	0.91
I3	0.78	0.75	0.89	0.84	0.73	0.89
I4	0.74	0.64	0.89	0.78	0.67	0.90
I5	0.63	0.46	0.90	0.69	0.52	0.91
I6	0.82	0.72	0.88	0.78	0.71	0.90
I7	0.54	0.39	0.91	0.59	0.47	0.91
I8	0.54	0.46	0.91	0.68	0.52	0.91
Cronbach’s Alpha	0.91			0.92

ISSN: 1472-6831