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Table 3 Appropriateness rating CAT vs. QLQ-C30 questions

From: Do patients consider computer-adaptive measures more appropriate than static questionnaires?

  Physical Functioning Emotional Functioning
  CAT QLQ-C30   CAT QLQ-C30  
Information* 28.76 10.96 12.04 6.83
Median of difference in information 18.59 4.45
Preferences CAT indifferent QLQ-C30   CAT indifferent QLQ-C30  
Overall 56.8%
n = 25
27.2%
n = 12
15.9%
n = 7
p = 0.002 4.5%
n = 2
40.9%
n = 18
54.5%n = 24 p < 0.001
Large difference in information group 68.2%
n = 15
22.7%
n = 5
9.1%
n = 2
  9.1%
n = 2
22.7%
n = 5
68.2%
n = 15
 
Small difference in information group 45.5%
n = 10
31.8%
n = 7
22.7%
n = 5
0 59.1%
n = 13
40.9%
n = 9
  1. Note. * = Mean test information values (i.e. measurement precision) derived from IRT models used for item calibration [9, 10]. Please note that there are no absolute values for test information