. Author manuscript; available in PMC: 2010 Sep 16.

Published in final edited form as: Am J Intellect Dev Disabil. 2009 Sep;114(5):307–321. doi: 10.1352/1944-7558-114.5.307

Table 2.

Fixed and Random Effects Estimates and Standard Errors for Developmental Behavior Checklist (DBC) Subscales for the Time-Based Model Conditional on Age

	DBC Subscales

	A	CD	D	SA	SR
Fixed Effects
Level
Estimate	4.090^* (0.136)	5.774^* (0.191)	13.485^* (0.426)	14.201^* (0.452)	4.494^* (0.148)
Age (12)	−0.078^* (0.036)	0.003 (0.047)	−0.023 (0.107)	−0.396^* (0.111)	0.116^* (0.037)
Rate of Change
Estimate	−0.062^* (0.015)	−0.054^* (0.020)	−0.270^* (0.038)	−0.315^* (0.036)	0.057^* (0.016)
Age (12)	0.008^* (0.004)	−0.013^* (0.005)	0.005 (0.010)	0.023^* (0.009)	−0.009^* (0.004)
Variance Components
Level Variance	6.270^* (.685)	13.487^* (1.254)	74.427^* (6.153)	86.609^* (7.112)	7.276^* (0.804)
Slope Variance	0.039^* (0.009)	0.071^* (0.016)	0.309^* (0.054)	0.268^* (0.052)	0.033^* (0.009)
Residual Variance	3.799^* (0.280)	6.220^* (0.439)	21.524^* (1.669)	20.730^* (1.667)	4.655^* (0.344)

Note. Standard errors are shown in parentheses.

p < 0.01. A: anxiety, CD: communication disturbance, D: disruptive/antisocial, SA: self absorbed, and SR: social relating. For details of full model in univariate analysis, see Einfeld et al. (2006).