Table 2.

Parameter estimates for LGCM with time-invariant (TIC) and time varying covariates (TVC)

	LGCM-TIC			LGCM-TIC and TVC
	Est	S. E	p	Est	S. E	p
Intercept mean	10.613	1.418	.000	3.890	3.055	.203
Slope mean	17.238	2.423	.000	19.060	6.245	.002
Quadratic mean	−2.454	2.423	.000	−2.224	1.739	.201
Intercept variance	35.157	47.684	.461	23.847	57.460	.678
Slope variance	247.302	73.600	.001	401.945	94.972	.000
Quadratic variance	12.626	4.608	.006	25.393	6.184	.000
Intercept with Slope	29.548	42.883	.491	−11.291	52.458	.830
Intercept with Quadratic	−9.657	8.390	.250	0.389	10.674	.971
Slope with Quadratic	−48.948	17.710	.006	− 96.970	23.499	.000
Intercept predicted by
Age	−0.056	0.047	.225	0.022	0.076	.767
Gender	−3.307	1.104	.003	−1.405	1.706	.410
ACE	−0.342	0.173	.048	−0.304	0.275	.268
Intervention	2.528	1.092	.021	5.912	2.696	.028
Slope predicted by
Age	0.204	0.079	.010	0.126	0.124	.308
Gender	−1.212	1.886	.520	2.134	2.788	.444
ACE	0.074	0.297	.802	0.142	0.450	.752
Intervention	38.412	1.857	.000	37.599	4.400	.000
Quadratic predicted by
Age	−0.027	0.020	.173	− 0.009	0.032	.777
Gender	0.059	0.471	.901	−0.326	0.726	.654
ACE	−0.032	0.074	.665	−0.030	0.117	.799
Intervention	−8.670	0.463	.000	−9.101	1.141	.000
Housing stability predicted by
T2: Working alliance				0.281	0.044	.000
T3: Working alliance				0.026	0.053	.623
T4: Working alliance				−0.010	0.052	.842
T5: Working alliance				0.025	0.092	.789

Note: LGCM-TIC Latent growth model with time-invariant covariates; LGCM-TIC and TVC Latent growth model with time-invariant and time varying covariates; ACE Adverse childhood experiences