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Table 5 Internal inconsistency of Fact-G, FLIC and EORTC QLQ-C30 by presentation order(a)

From: Order effects: a randomised study of three major cancer-specific quality of life instruments

Order FACT-G FLIC EORTC QLQ-C30
A 0.909 0.925 0.896
B 0.911 0.934 0.866
Difference in alpha -0.002 -0.009 0.030
(90% CI) (-0.022 to 0.099) (-0.024 to 0.006) (-0.024 to 0.082)
  1. (a) Order A and order B mean, respectively, the HRQoL instrument was placed first and second in the questionnaire