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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