TABLE 4.

Simulation study of varying number of classes

Data generated under the three-class model
# Of classes in analysis	NIE						NDE
	BIC	Estimate	SD	Bias	SE	Estimate	SD	Bias	SE
2	10 310.1	−1.65	0.91	1.07	0.01	−3.05	1.71	−1.05	0.02
3 (TRUE)	9504.9	−2.73	1.01	−0.01	0.01	−1.98	1.77	0.03	0.02
4	9554.1	−2.79	1.34	−0.07	0.01	−1.93	1.99	0.07	0.02
5	9592.1	−2.83	1.51	−0.11	0.02	−1.87	2.09	0.13	0.02
6	9638.0	−3.12	5.83	−0.40	0.06	−1.53	6.00	0.47	0.06

Data generated under the four-class model
# Of classes in analysis	NIE					NDE
	BIC	Estimate	SD	Bias	SE	Estimate	SD	Bias	SE
2	10 819.4	−2.16	0.97	0.85	0.01	−2.43	1.75	−0.85	0.02
3	10 087.1	−3.06	1.03	−0.04	0.01	−1.53	1.79	0.05	0.02
4 (TRUE)	9581.1	−3.02	1.06	−0.01	0.01	−1.56	1.80	0.01	0.02
5	9625.5	−3.06	1.16	−0.04	0.01	−1.53	1.86	0.05	0.02
6	9666.8	−3.19	1.77	−0.17	0.02	−1.18	2.25	0.39	0.02

# of classes in analysis	NIE					NDE
	BIC	Estimate	SD	Bias	SE	Estimate	SD	Bias	SE
2	11 035.0	−3.85	1.17	0.89	0.01	−0.82	1.84	−0.90	0.02
3	10 355.2	−3.36	1.10	1.38	0.01	−1.31	1.82	−1.38	0.02
4	9908.3	−4.02	1.31	0.72	0.01	−0.65	1.96	−0.72	0.02
5 (TRUE)	9636.9	−4.75	1.23	−0.01	0.01	0.08	1.88	0.01	0.02
6	9687.6	−4.80	1.26	−0.06	0.01	0.13	1.91	0.05	0.02

True indirect effect = −2.72. True direct effect = −2.01.

True indirect effect = −3.02. True direct effect = −1.58.

Data generated under the five-class model:

True indirect effect = −4.74. True direct effect = 0.08.