Table 3: Regression models for arithmetic abilities.

TaskAdjusted r Sample sizeSignificant predictors in the model

Simple addition34.7164Sex, grade, raven, Corsi backwards, digit-span forward
Complex addition38.4164Grade, Corsi backward, digit-span forward, Corsi backward
Simple subtraction26.1164Sex, grade, Corsi backward, Corsi forward
Complex subtraction29.9164Grade, Corsi backward, digit-span backward, MAQ-scale A
Simple multiplication53.5164Grade, Corsi backward, digit-span forward, MAQ-scale A, MAQ-scale D
Complex multiplication42.9164Corsi forward, digit-span forward, digit-span backward, MAQ-scale A

§expressed as the proportion of variance in the dependent variable explained by the model.