Table 2.

Measurements and confirmatory factor analysis for the original model.

Construct	Items	Unstandardized estimate	Standard error	Critical ratio	Standardized factor loadings	p value	Average variance extracted	Construct reliability	Cronbach alpha
PU	PU1	0.660	0.052	12.720	0.850	<0.001	0.734	0.917	0.912
	PU2	0.662	0.050	13.112	0.866	<0.001
	PU3	0.730	0.052	14.118	0.905	<0.001
	PU4	0.736	0.063	11.664	0.803	<0.001
PEOU	PEOU1	0.816	0.085	9.627	0.802	<0.001	0.411	0.368	-0.123
	PEOU2	0.746	0.074	10.062	0.839	<0.001
	PEOU3	-0.611	0.095	-6.448	-0.539	<0.001
	PEOU4	0.054	0.073	0.748	0.067	<0.001
BI	BI1	0.527	0.048	11.000	0.775	<0.001	0.617	0.862	0.828
	BI2	0.661	0.049	13.392	0.881	<0.001
	BI3	0.724	0.055	13.057	0.867	<0.001
	BI4	0.602	0.080	7.556	0.583	<0.001
ATU	ATU1	0.621	0.052	11.825	0.813	<0.001	0.554	0.832	0.823
	ATU2	0.545	0.054	10.175	0.731	<0.001
	ATU3	0.562	0.056	10.013	0.722	<0.001
	ATU4	0.764	0.078	9.752	0.708	<0.001
SE	SE1	0.640	0.054	11.755	0.808	<0.001	0.685	0.896	0.896
	SE2	0.720	0.053	13.551	0.884	<0.001
	SE3	0.643	0.060	10.732	0.759	<0.001
	SE4	0.666	0.052	12.801	0.854	<0.001

PU: perceived usefulness; PEOU: perceived ease of use; BI: behavioral intention; ATU: attitude toward using and actual use; SE: user satisfaction.