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Table 5 Variance components of model 2 (reliability model with adjustment for rater stringency)

From: Cutting costs of multiple mini-interviews – changes in reliability and efficiency of the Hamburg medical school admission test between two applications

  2009 2010
Effect Variance components (95% CI) % Variance components (95% CI) %
Cand Systematic differences in candidate performance 0.13 (0.08-0.20) 13.9 0.21 (0.16-0.28) 19.6
Cand*stat Differences in candidate performance between stations 0.30 (0.02-0.19) 31.6 0.38 (0.34-0.43) 35.6
Rater*cand (+ error) Adjusted differences in rater candidate taste, and residual variance 0.52 (0.55-0.64) 54.5 0.48 (0.45-0.51) 44.8
Total 0.95 100 1.07 100
  1. 2009: Rel = Vcand/(Vcand + Vcand*stat/12 + Vrater*cand/28) = 0.75.
  2. 2010: Rel = Vcand/(Vcand + Vcand*station/9 + Vrater*cand/19.5) = 0.76.