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Table 5 Reliability: Internal consistency and stability of the five sections of the PCQ-P

From: The Prostate Care Questionnaire for Patients (PCQ-P): Reliability, validity and acceptability

  Internal consistency Stability: Test-retest reliability
Section i Cronbach's α 1st mailing mean
score
SD, min-max
(N)
2nd mailing mean
score
SD, min-max
(N)
Intraclass
Correlation
Coefficient
(ICC)
Section A 0.80 69.1 68.5 0.68
   19.6, 11.5-100 (60) 18.7, 16.7-100 (62)  
Section B 0.63 84.4 81.3 0.57
   15.3, 28.5-100 (73) 10.6, 39.7-99.4 (72)  
Section C 0.77 88.4 87.6 0.61
   12.0, 55.0-100 (62) 13.1,31.3-100 (63)  
Section D 0.80 73.2 74.8 0.73
   17.1, 27.7-99.23 14.5, 41.4-100 (49)  
   (48)   
Section E 0.68 74.3 74.9 0.70
   21.9, 16.7-100 (61) 19.7, 18.8-100 (60)  
  1. iSection A = GP visits and referral, Section B = tests at the hospital, Section C = diagnosis and treatment decision, Section D = treatment and discharge, Section E = monitoring