. 2021 May 24;74(11):1935–1952. doi: 10.1177/17470218211016794

Table 6.

Hierarchical regression with mathematical reasoning as dependent variable.

Step	Independent variables	Standardised β	t	p	R ²	ΔR²
1	Processing speed	−.08	−0.62	.535	.23^**	.23^**
1	Fluid intelligence	.47	3.83	<.001	.23^**	.23^**
2	Processing speed	−.08	−0.66	.512	.24^**	.01
	Fluid intelligence	.42	2.96	.005
	Ordinality Accuracy	.10	0.69	.491

^**

p < .01.