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Table 3 Agreement among experts (expressed as W, Kendall's coefficients of concordance, for welfare scores given to the 11 housing systems and to the 18 hazards in the questionnaire), and agreement between experts and EFSA report (expressed as Rho, Spearman's rank correlation coefficients, between median expert scores and hazard/risk characterisation)

From: Expert opinion as 'validation' of risk assessment applied to calf welfare

  Housing systems Hazards Hazards Housing systems
Type of expert        HC Median RC Total RC
  W P n W P n Rho P Rho P Rho P
All experts 0.29 0.00 18 0.18 0.00 21 0.47 0.06 -0.54 ns -0.45 ns
Ethologists 0.23 0.01 9 0.11 0.04 9 0.28 ns -0.03 ns -0.22 ns
Veterinarians 0.10 ns 5 0.09 ns 7 0.57 0.02 -0.68 0.05 -0.36 ns
Mixed background 0.15 ns 4 0.34 0.00 5 0.66 0.01 0.13 ns -0.08 ns
  1. P: significance level; ns: not significant; n: number of experts without missing values; HC: Hazard Characterisation; RC: Risk Characterization.