Table 4.

Models of Total Sleep Time (TST) Predicting Behavioral Outcomes (n = 41)

	Repetitive Behavior		Negative Affect		Aggression		Self-Injury		General Behavior
	Effect	s.e.	Effect	s.e.	Effect	s.e.	Effect	s.e.	Effect	s.e.
Fixed Effects
child level characteristics
Age	.04*	.02	−.02*	.01	.00	.00	.00	.00	.02	.02
Level of functioning=1	−.42***	.08	−.05	.03	−.01	.01	−.02	.01	−.41***	.06
Level = 2	−.38***	.07	−.10**	.03	−.01	.01	−.01	.01	−.39***	.06
Level = 3	0		0		0		0		0
TST within	.05	.05	.00	.05	−.01	.01	−.01	.04	.02	.06
TST between	−1.00***	.29	−.17	.13	.08*	.03	−.01	.01	−.79***	.24
Intercept	1.14***	.28	.36**	0.14	−.06	0.03	.01	.03	1.20***	.24
AIC	−137.63		−299.40		−599.07		−798.16		−113.53
BIC	−122.07		−277.78		−583.51		−782.60		−97.97
−2LL	−147.98		−314.06		−609.42		−808.51		−123.87
ICC within	23%		53.33%		50%		50%		35%
ICC between	77%		46.66%		50%		50%		65%

Note. Level 3 is set to zero because it serves as a reference group; CBC = challenging behavior composite

^*p < .05

^**p < .01

^***p < .001