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. Author manuscript; available in PMC: 2013 Jan 1.

Published in final edited form as: Child Dev. 2011 Dec 16;83(1):203–222. doi: 10.1111/j.1467-8624.2011.01692.x

Table 3.

Summary of Level 1 (Unconditional) models

	Level 1: Unconditional

	Model 1: Intercept only	Model 2: Linear	Model 3: Quadratic
Model Fit (-2LL)	4397.9	3958.5	3823.6
# of Parameters	3	6	10

Fixed Effects	Parameter estimates (se)

Intercept	263.1 (14.4)^**	502.9 (19.7)^**	503.7 (17.5)^**
Linear	--	35.5 (1.3)^**	35.2 (4.1)^**
Quadratic	--	--	-.04 (.35)

Random Effects	Covariance Estimates (se)

Within-person	40519.5 (3686.5)^**	5853.6 (652.1)^**	1937.7 (307.1)^**
Intercept	6645.1 (2809.8)^*	26709.3 (4991.1)^**	22872.7 (3912.3)^**
Linear	--	61.0 (22.9)^**	1085.9 (219.1)^**
Quadratic	--	--	7.7 (1.5)^**

Note: se = standard error; t-statistic:

^*

p < .01; Wald Z:

^**

p < .001; Significant effects also indicated in bold.