Table 3.

Fixed effects parameter estimates of final model for children’s frequency of motion peaks across the course of a run.

parameter	β	Lower 95% CI	Upper 95% CI	SE	df	t	p
Intercept	1.12857	−2.87326	5.13041	2.04301	2290	0.552	0.581
Minute of run	0.60187	0.15491	1.04884	0.22818	2290	2.638	0.008
Prior functional segment scan time	0.22521	−0.01436	0.46478	0.12231	2290	1.841	0.066
Prior session scan time	0.08717	−0.18705	0.36138	0.13999	2290	0.623	0.534
Prior day scan time	0.41294	0.22250	0.60339	0.09722	2290	4.247	< .001
Scanner training date	0.81829	−0.71812	2.35470	0.78436	2290	1.043	0.297

Note: CI = confidence interval, SE = standard error, df = degrees of freedom.