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. 2020 Oct 27;8(11):142. doi: 10.3390/sports8110142

Table 3.

Cross-validation of the somatotype predictive models and the reference procedure.

Variable Regression Analysis CCC Analysis Agreement Analysis
R2 PE CCC ρ Cb Bias 95% LoA Trend
Cross-Validation
Endomorph 0.80 0.162 0.89 0.8957 0.9917 −0.0149 −0.329; 0.287 r = −0.263 (p = 0.054)
Mesomorph 0.84 0.338 0.90 0.9173 0.9940 −0.1479 −0.842; 0.546 r = −0.129 (p = 0.331)
Ectomorph 0.87 0.229 0.93 0.9346 0.9973 −0.0613 −0.591; 0.468 r = −0.235 (p = 0.074)

Abbreviations: R2, coefficient of determination; PE, pure error; CCC, concordance correlation coefficient; ρ, precision; Cb, accuracy; LoA, limits of agreement.