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Table 3 Convergent and discriminant validity and internal consistency reliability for the EORTC QLQ-HCC18

From: Validation of the Japanese version of the EORTC hepatocellular carcinoma-specific quality of life questionnaire module (QLQ-HCC18)

Scale No. of items per scale Convergent validity (range of correlations) Discriminative validity (range of correlations) Scaling success Scaling success rate Internal consistency reliability (Cronbach’s α)
Fatigue 3 0.44-0.75 0.14-0.57 9/9 100 0.78
Nutrition 5 0.23-0.54 0.04-0.51 13/15 87 0.68
Pain 2 0.25 0.11-0.48 3/6 50 0.37
Fever 2 0.52 0.15-0.46 6/6 100 0.68
  1. Number of convergent correlations significantly higher than discriminant correlations divided by total number of correlations.
  2. Scaling success rate is the previous column as a percentage.