Regression analyses of each association between different measures of handedness and components of reproductive success.

B’s, standard errors (SE), Wald Chi square statistics and p-values are presented. Results of the interaction effects are reported from the full models whereas those of the main effects are from models without the interaction effects. The models additionally include age, age2, and the total score on the task (L+R) in the models concerning the pegboard or ball throwing task. For more details please refer to the text.