Table 2.

Bivariate and partial correlations (controlling for non-verbal intelligence and verbal short-term memory) between arithmetic tasks.

	Complex multiplication	Simple division	Complex division
BIVARIATE CORRELATIONS
Simple multiplication	0.59**	0.78**	0.45**
Complex multiplication		0.62**	0.56**
Simple division			0.53**
PARTIAL CORRELATIONS
Simple multiplication	0.43**	0.70**	0.29**
Complex multiplication		0.45**	0.41**
Simple division			0.38**

Bivariate correlations: df = 390, partial correlations: df = 388,

^**p < 0.001.