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Table 3 Correlations of Part 1, Part 2 and PACES results, before and after equating of Parts 1 and 2

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

   Part 1 not equated and Part 2 not equated Part 1 equated and Part 2 equated  
   r SE N r SE N Significance
Part 1 predicting Part 2 UK 0.618 0.008 6347 0.651 0.009 3865 P = .007
  non-UK 0.553 0.008 7361 0.614 0.010 4150 P < .001
  All 0.605 0.005 13708 0.623 0.007 8015 P = .040
Part 1 predicting PACES UK 0.305 0.010 7875 0.320 0.019 2172 P = .493
  non-UK 0.276 0.010 8648 0.283 0.027 1183 P = .807
  All 0.385 0.007 16523 0.311 0.016 3355 P < .001
Part 2 predicting PACES UK 0.285 0.012 5957 0.270 0.020 2180 P = .516
  non-UK 0.233 0.012 5822 0.202 0.028 1195 P = .306
  All 0.309 0.008 11779 0.211 0.016 3375 P < .001
  1. Pearson correlations (r) are shown separately for UK candidates, non-UK candidates and All Candidates (shown in italics), for candidates where both Part 1 and Part 2 were passed before statistical equating was introduced and for candidates for whom both Part 1 and Part 2 were statistically equated.
  2. The significance of the difference in correlations is computed using a standard test [35], and rows where before and after correlations are significant are shown in bold.