Table 3.

Coefficients/estimates, standard errors (in brackets), and confidence intervals for the fixed effects of interest and random effects for the Connor-Davidson Resilience Scale–10 models.^a

Parameter		DAUb only, estimate (SE), 95% CI	P value	ACEsc and DAU, estimate (SE), 95% CI	P value
Fixed effects
	Intercept	26.81 (0.45), 25.92 to 27.70	<.001	27.66 (0.69), 26.30 to 29.02	<.001
	DAU	0.04 (0.02), 0.00 to 0.08	.08	0.05 (0.03), −0.02 to 0.11	.15
	ACEs	N/Ad	N/A	−0.34 (0.21), −0.74 to 0.07	.105
	ACEs × DAU	N/A	N/A	0.00 (0.01), −0.02 to 0.01	.68
Variance components
	Residual	11.95 (1.29), 9.68 to 14.76	N/A	11.94 (1.28), 9.68 to 14.73	N/A
	Intercept	21.81 (3.20), 16.36 to 29.09	N/A	21.25 (3.14), 15.92 to 28.38	N/A
	Slope	0.01 (0.01), 0.01 to 0.04)	N/A	0.01 (0.01), 0.01 to 0.04	N/A

^aThe number of observations in these models at level 1 (timepoint) is 418; at level 2 (participant) it is 155.

^bDAU: days of app usage.

^cACEs: adverse childhood experiences.

^dN/A: not applicable.