What factors predict physicians' utilization behavior of contrast-enhanced ultrasound? Evidence from the integration of the Theory of Planned Behavior and Technology Acceptance Model using a structural equation modeling approach

Table 1 Reliability test for each item, variable and the whole questionnaire

Variable/item	Corrected item-total correlation	Cronbach’s α if item deleted	Cronbach’s α
Attitude (ATT)			0.921
ATT1	0.835	0.890
ATT2	0.860	0.870
ATT3	0.825	0.898
Subjective norm (SN)			0.951
SN1	0.886	0.936
SN2	0.922	0.908
SN3	0.884	0.938
Perceived behavioral control (PBC)			0.948
PBC1	0.867	0.942
PBC2	0.919	0.903
PBC3	0.889	0.926
Perceived usefulness (PU)			0.936
PU1	0.866	0.910
PU2	0.874	0.904
PU3	0.866	0.910
Perceived ease of use (PEOU)			0.852
PEOU1	0.725	0.792
PEOU2	0.723	0.797
PEOU3	0.726	0.792
Behavioral intention (BI)			0.951
BI1	0.897	0.927
BI2	0.885	0.936
BI3	0.906	0.920
Utilization behavior (UB)			0.944
UB1	0.856	0.929
UB2	0.823	0.935
UB3	0.793	0.940
UB4	0.878	0.925
UB5	0.888	0.923
The whole questionnaire			0.947

ISSN: 1472-6947