Table 2. Summary of mixed-effects model results for Experiment 2.

Subtraction Task
	Accuracy			Response Times
Source	β	z	p	β	t	p
Type	–2.30	–23.81	<.001	2.09	36.92	<.001
Secondary Task	–1.05	–6.07	<.001	–0.03	1.58	.113
Type x Secondary Task	0.83	7.05	<.001	–0.04	<1	-
Difficulty	–0.53	–4.88	<.001	0.27	3.82	<.001

Type  =  Subtraction type, difficulty  =  Secondary task difficulty.