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Table 5 Internal consistency and item-total correlations of the specified subscales of the PRAFAB questionnaire

From: Factorial validity and internal consistency of the PRAFAB questionnaire in women with stress urinary incontinence

 

Sample A (N = 140)

Sample B (N = 139)

Internal consistency (Cronbach's alpha):

  

Factor 1: leakage severity

0.82

0.78 a

Factor 2: perceived impact

0.84

0.82 a

Inter-factor correlations

0.31b

0.31 b

Item-total correlations (range):

  

Factor 1: leakage severity

0.67 – 0.83

0.67 – 0.85

Factor 2: perceived impact

0.76 – 0.87

0.74 – 0.84

  1. a Inter-item correlations ranged from 0.42 to 0.68 for Factor 1 and was 0.46 for Factor 2 in Sample B.
  2. b p < 0.01