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Table 2 Predictive ability and prediction accuracy for yield for each of the five cross-validation (CV) sets for random and family groupings of individuals, and mean and standard error (SE) for each grouping

From: Genomic selection and genetic gain for nut yield in an Australian macadamia breeding population

Grouping CV set Predictive Ability Prediction Accuracy (r)
Random 1 0.36 0.66
  2 0.43 0.79
  3 0.30 0.56
  4 0.08 0.16
  5 0.39 0.71
  Mean   0.57**
  SE   0.11
Family 1 −0.16 −0.29
  2 0.15 0.28
  3 −0.03 −0.05
  4 0.28 0.51
  5 0.15 0.27
  Mean   0.14NS
  SE   0.14
  1. Results of t-test: ** p < 0.01, NS indicates not significantly different from zero