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Table 2 Internal consistency reliability and responsiveness. Studies 3 and 4

From: Internal consistency reliability is a poor predictor of responsiveness

Study

Instrument and domain

Internal consistency reliability

Standardised response mean#

Study 3

CRQ-IA

  
 

   Dyspnea

0.73

0.94

 

   Fatigue

0.81

0.96

 

   Emotional function

0.77

1.35

 

   Mastery

0.76

1.09

 

CRQ-SA

  
 

   Dyspnea

0.78

0.86

 

   Fatigue

0.83

1.38

 

   Emotional function

0.89

1.00

 

   Mastery

0.86

0.86

 

SF-36

  
 

   Physical composite score

0.61

0.59

 

   Mental composite score

0.70

0.48

Study 4a

ACL-QOL

0.96

1.45

 

IKDC

0.86

1.17

 

KOOS

  
 

   Symptoms

0.74

0.64

 

   Pain

0.89

0.74

 

   Function

0.96

0.59

 

   Sports

0.92

0.83

 

   QOL

0.88

1.15

 

SF-36

  
 

   Physical Function

0.90

0.64

 

   Role Physical

0.79

0.67

 

   Bodily Pain

0.80

0.52

 

   General Health

0.72

0.11

 

   Vitality

0.87

0.44

 

   Social Functioning

0.81

0.50

 

   Role Emotional

0.82

0.33

 

   Mental Health

0.76

0.34

Study 4b

WOMET

0.97

0.88

 

IKDC

0.90

0.85

 

KOOS

  
 

   Symptoms

0.82

0.85

 

   Pain

0.93

0.95

 

   Function

0.97

0.82

 

   Sports

0.94

0.66

 

   QOL

0.90

0.71

 

SF-36

  
 

   Physical Function

0.93

0.59

 

   Role Physical

0.93

0.40

 

   Bodily Pain

0.88

0.60

 

   General Health

0.85

-0.08

 

   Vitality

0.86

0.08

 

   Social Functioning

0.84

0.25

 

   Role Emotional

0.88

0.12

 

   Mental Health

0.79

0.21

  1. ¶Cronbach's alpha
  2. # Change score (follow-up minus baseline) / standard deviation of change score
  3. * Pearson correlation coefficient