Row	Measure	Predictor	t	df	p	β	SE
1	Completion time	linear (features in memory)	−2.735	2.73	.079	−1.166	0.427
2	Completion time	quadratic (features in memory)	15.078	14.97	< 0.001	7.820	0.519
3	Completion time	locomotion	20.397	21.09	< 0.001	0.129	0.006
4	Completion time	linear (features in memory): locomotion	−6.840	6.457	< 0.001	−2.918	0.427
5	Completion time	quadratic (features in memory): locomotion	−10.085	3.334	.001	−3.784	0.375

Each row shows the results of a predictor variable.

The p-values were calculated with the Satterthwaite’s degrees of freedom method.