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Table 1 Root mean square error (RMSE) for the linear and quadratic mixed models

From: A field guide for aging passerine nestlings using growth data and predictive modeling

Variable Power RMSE
Mass Lineara 0.43
Quadratic 0.42
Tarsus Lineara 0.68
Quadratic 0.69
Total culmen Linear 0.72
Quadratica 0.59
Culmen from tip of nares Linear 0.86
Quadratica 0.70
  1. RMSE is a measure of the difference between predicted age and actual age during model validation
  2. aDenotes the final model that was chosen