Table 1 Effects on immature exploratory tendency (model selection approach).

Model selection of individual factors using the likelihood ratio test significantly supported the inclusion of the factor past sociability as a predictor of exploration rate. Age was included as a nonlinear control variable and the individual as a random effect.

FactorFactor typeEstimateSEConfidence intervals
0.0250.975
InterceptIntercept−0.010.06−0.130.11
function(Age)Control1.010.050.921.09
IndividualRandom
Past sociabilityPredictor0.170.040.080.25