Table 3. Results of Reliability Analysis.

Reliability Analysis Factor	Cronbach’s Alpha	Initial Items	Final Items
Human Quality	.843	6	5
System Quality	.784	6	3
Result Quality	.776	5	3
Service Value	.694	3	3
Satisfaction with Service	.849	3	3
Service Reliability	.842	4	4

All items had Cronbach's alpha coefficient of 0.6 or higher; thus, they were confirmed to have internal consistency.