Table 1.

Summary of Correlations Among Primary Study Variables, Means, and SDs

	1	2	3	4	5	6	7	8	9	10
1. Income-to-needs ratio	—
2. Can’t make ends meet	.41**	—
3. Material needs	.42**	.69**	—
4. Financial cuts	.34**	.67**	−.61**	—
5. Mother’s education	.49**	.23**	−.22**	.13*	—
6. Community povertya	−.07	−.07	.11~	−.06	.01	—
7. Sleep minutesb	.18**	.20**	−.18**	.23**	.14*	−.17**	—
8. Sleep efficiencyb	.14*	.03	−.07	.06	.17**	−.02	.73**	—
9. Variability sleep onsetb	−.09	−.19**	.22**	−.15*	.01	.02	−.17**	−.02	—
10. Sleep/wake problemsc	.20**	−.08	.15*	−.10	−.09	−.04	−.04	−.03	.12	—
Mean	1.72	8.06	18.76	36.51	4.81	.55	457	88.79	.07	18.97
SD	1.04	2.86	7.07	4.96	1.08	.50	57	6.40	.12	5.23

^aCommunity poverty was dummy coded as (1) Title 1 school district; (0) not a Title 1 school district.

^bActigraphy-based data.

^cChild-reported data.

^~p < .10.

^*p < .05.

^**p < .01.