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Table 2 Average pass rates in UK and non-UK candidates by 1st, 2nd and 3rd diet

From: Implementing statistical equating for MRCP(UK) parts 1 and 2

   Diet in year UK all UK 1st Non-UK all Non-UK 1st
Part 1 Pre-equating 1st 47.8 53.3 24.3 28.2
   2nd 45.8 50.2 23.9 26.6
   3rd 48.9 55.2 27.1 28.2
  Post-equating 1st 48.8 52.0 35.7 41.2
   2nd 41.7 44.4 33.2 37.7
   3rd 57.9 63.8 39.1 45.7
  Pre-equating 3rd – 2nd 3.1 5.1 3.2 1.6
  Kruskal-Wallis test (2 df)   P = .885 P = .217 P = .124 P = .350
  Post-equating 3rd – 2nd 9.2 11.7 3.4 4.5
  Kruskal-Wallis test (2 df)   P = .009 P = .008 P = .221 P = .146
Part 2 Pre-equating 1st 75.2 78.0 52.3 56.4
   2nd 76.4 81.5 50.4 55.7
   3rd 80.1 84.1 50.0 55.8
  Post-equating 1st 78.0 81.1 59.0 64.9
   2nd 76.2 79.8 55.3 61.5
   3rd 78.0 82.3 54.2 62.1
  Pre-equating 3rd – 2nd 3.7 2.6 -0.4 0.1
  Kruskal-Wallis test (2 df)   P = .152 P = .160 P = .215 P = .887
  Post-equating 3rd – 2nd 1.8 2.5 -1.0 0.6
  Kruskal-Wallis test   P = .943 P = .845 P = .546 P = .943