Performance of mixed effects models in the analysis of mediated longitudinal data

Table 4 Goodness of fit.

		Distribution
Model	Fit Statistic	Uniform	Lognormal	Fleishman/Mattson 1	Fleishman/Mattson 2
SEM	Chi-square	36.6	58.0	38.4	43.7
	RMSEA	0.010	0.040	0.023	0.021
	SRMR	0.039	0.043	0.041	0.041
	AIC	7309	7288	7307	7307
Mixed Model without Mediator	-2LogLikelihood	5550	5537	5549	5547
	AIC	5566	5553	5565	5563
	BIC	5594	5581	5593	5591

Assessing goodness of fit of SEMs and LMMs with datasets with non-normal error distributions.
Normal comparison model has SEM values of Chi-square = 38.2, RMSEA = 0.012, SRMR = 0.040, AIC = 7306 and LMM values of Negative 2Loglikelihood = 5548, AIC = 5564 and BIC = 5592.

ISSN: 1471-2288