Table 2.

Model Fit Information of Various Statistical Models

Model	k	LL	BIC	Description
EFA
1F	24	−17174.77	34546.71
2F	35	−16958.76	34205.06
3F	45	−16825.55	34020.80	Best fitting EFA
4F	54	−16798.63	34040.90
5F	62	−16782.74	34074.85
CFA
3Fa	27	−16916.50	34054.81
3Fb	28	−16884.96	33999.95	Best fitting overall
LCA
1C	12	−21925.31	43949.21
2C	25	−17670.96	35547.30
3C	38	−17182.27	34676.73
4C	51	−16999.40	34417.80
5C	64	−16915.11	34356.01
6C	77	−16841.50	34315.60	Best fitting LCA
7C	90	−16797.75	34334.90
EFMA
2C-1F	49	−16906.44	34215.44
2C-2F	71	−16754.96	34093.23	Best fitting EFMA
2C-3F	91	−16708.63	34164.86
3C-1F	74	−16771.07	34150.09
3C-2F	107	−16689.73	34258.53
3C-3F	137	−16650.47	34426.47
4C-1F	99	−16728.75	34270.84
4C-2F	143	−16651.53	34477.88
4C-3F	183	−16609.23	34721.91
5C-1F	124	−16690.41	34399.56
5C-2F	179	−16596.96	34664.49
5C-3F	229	−16571.06	35023.48
6C-1F	149	−16659.55	34543.21
6C-2F	215	−16574.45	34915.24
6C-3F	275	−16533.86	35327.00
LCFA
2C-1F	25	−17670.96	35547.30
2C-2F	28	−17670.96	35571.95
2C-3F	29	−17670.96	35580.16
3C-1F	27	−17188.68	34599.17
3C-2F	31	−17188.21	34631.09
3C-3F	33	−17186.86	34644.83
4C-1F	29	−17138.69	34515.64
4C-2F	34	−17031.97	34343.26
4C-3F	37	−17027.62	34359.21
5C-1F	31	−17125.34	34505.36
5C-2F	37	−16984.89	34273.76
5C-3F	41	−16969.44	34275.72
6C-1F	33	−17122.42	34515.94
6C-2F	40	−16953.04	34234.70
6C-3F	45	−16914.32	34198.34	Best fitting LCFA

Note: BIC = Bayesian information criteria; C = class; CFA = confirmatory factor analysis; EFA = exploratory factor analysis; EFMA = exploratory factor mixture analysis; F = factor; k = number of parameters; LCA = latent class analysis; LCFA = latent class factor analysis. LL = log-likelihood.

Model subscripts:

^aCFA with no cross-loading

^bCFA with cross-loading of item “difficulty engaging in socially appropriate conversation”; see the Statistical Analyses subsection for more information about the cross-loading