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Table 6 Reliability and validity

From: A Socio-technical assessment of the success of picture archiving and communication systems: the radiology technologist’s perspective

Variable Item Mean Standard deviation Cross loading CR Cronbach’s α AVE
System quality B1 3.95 0.63 0.86*** 0.92 0.88 0.74
B2 3.90 0.69 0.88***
B3 3.85 0.64 0.86***
B4 3.84 0.68 0.83***
Information quality C1 3.89 0.70 0.88*** 0.94 0.91 0.79
C2 3.88 0.68 0.91***
C3 3.91 0.67 0.89***
C4 3.92 0.67 0.88***
Service quality D1 3.83 0.71 0.86*** 0.89 0.84 0.67
D2 3.75 0.72 0.86***
D3 3.80 0.80 0.73***
D4 3.67 0.73 0.82***
Perceived usefulness E1 4.00 0.64 0.88*** 0.91 0.87 0.71
E2 3.83 0.66 0.78***
E3 3.91 0.70 0.88***
E4 4.04 0.65 0.84***
User satisfaction F1 3.83 0.62 0.86*** 0.94 0.91 0.79
F2 3.96 0.61 0.90***
F3 4.02 0.64 0.90***
F4 3.98 0.69 0.90***
PACS dependence G1 3.88 0.97 0.83*** 0.92 0.88 0.74
G2 4.00 0.67 0.86***
G3 4.23 0.70 0.86***
  G4 4.17 0.69 0.89***    
  1. Note: CR Composite reliability, AVE Average variance extracted.
  2. *p < 0.05, **p < 0.01, ***p < 0.001.