Table 2.

Parameter estimates of the multilevel model investigating the relation between error IBI and posterror RT

Fixed Effects	Estimate	SE	95% CI	t Value (df)	p Value	Bootstrapped 95% CI	Random Effects
Intercept	6.21	.019	[6.17, 6.25]	329.48 (45.3)	<.001	[6.15, 6.23]	${\sigma }_e^2$ Residual	.053
Error IBI	– .010	.006	[– .022, .0008]	– 1.82 (134.4)	.071	[– .022, – .001]	${\sigma }_0^2$ Intercept	.014
Error RZI	– .003	.005	[– .014, .007]	– 0.58 (1974)	.566	[– .011, .008]	${\sigma }_1^2$ Error IBI	.0002
Pre-error RT	.038	.008	[.022, .054]	4.67 (33.9)	<.001	[.013, .051]	${\sigma }_2^2$ Pre-error RT	.0008
Task	.387	.022	[.344, .430]	17.70 (39.4)	<.001	[.346, .462]	${\sigma }_3^2$ Task	.012
Error IBI * Pre-error RT	– .015	.005	[– .026, – .005]	– 2.87 (1527)	.004	[– .030, – .002]

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