Table 4.

Parameter estimates of the multilevel model investigating the relation between postcorrect RZI and postcorrect RT

Fixed Effects	Estimate	SE	95% CI	t Value (df)	p Value	Bootstrapped 95% CI	Random Effects
Intercept	6.184	.015	[6.179, 6.188]	426.45 (47.0)	<.001	[6.156, 6.210]	${\sigma }_e^2$ Residual	.063
Postcorrect IBI	.0054	.002	[.0047, .0061]	2.40 (20620)	.016	[.0017, .0100]	${\sigma }_0^2$ Intercept	.010
Postcorrect RZI	– .0025	.002	[– .0030, – .0019]	– 1.35 (45)	.185	[– .006, .001]	${\sigma }_1^2$ Postcorrect RZI	.00002
Precorrect RT	.0233	.004	[.0222, .0244]	5.94 (63)	<.001	[.017, .028]	${\sigma }_2^2$ Precorrect RT	.0005
Task	.4179	.019	[.4124, .4234]	21.53 (47)	<.001	[.384, .461]	${\sigma }_3^2$ Task	.017
Postcorrect RZI * Postcorrect IBI	– .0048	.001	[– .0052, – .0044]	– 3.46 (20840)	<.001	[– .0076, .0012]
Postcorrect RZI * Precorrect RT	.0055	.002	[.0050, .0059]	3.35 (21790)	<.001	[– .0018, .0058]
Task * Postcorrect IBI	.0107	.003	[.0097, .0116]	3.16 (22490)	.002	[.0025, .0185]
Task * Precorrect RT	.0092	.003	[.0082, .0101]	2.72 (22500)	.007	[– .002, .021]

IBI = interbeat interval, RT = reaction time, RZI = RZ interval