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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.
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Health and Quality of Life Outcomes

ISSN: 1477-7525

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