Table 3. Regression Weights for the Cross-lagged Model of Perceived Social Support (PSS) and Post-traumatic Stress Disorder Symptoms (PTSD) Over Time.

	Figure 2 Model
	Standard All	Estimate	Standard Error	z Value	p Value
PSS T1 → PSS T2	0.78	0.84	0.07	12.7	<.001***
PSS T1 → PSS T3	0.37	0.53	0.24	2.3	.024**
PSS T1 → PSS T4	0.32	0.60	0.31	1.9	.054*
PSS T1 → PTSD T2	−0.11	−0.33	0.16	−2.1	.035**
PTSD T1 → PTSD T2	0.79	0.76	0.07	11.6	<.001***
PTSD T1 → PSS T2	−0.07	−0.02	0.02	−1.3	.188
PSS T2 → PSS T3	0.34	0.46	0.25	1.8	.071*
PSS T2 → PTSD T3	−0.18	−0.51	0.25	−2.05	.041**
PTSD T2 → PTSD T3	0.66	0.72	0.09	7.9	<.001***
PTSD T2 → PSS T3	−0.12	−0.06	0.07	−0.9	.352
PSS T3 → PSS T4	0.27	0.34	0.43	0.8	.424
PSS T3 → PTSD T4	−0.24	−0.47	0.17	−2.7	.006**
PTSD T3 → PTSD T4	0.75	0.69	0.08	8.6	<.001***
PTSD T3 → PSS T4	−0.20	−0.12	0.12	−1.0	.311

Note. Standardized regression weights in the cross-lagged model presented in Figure 2. PSS = Perceived social support as measured by the Social Provisions scale (SPS); PTSD = Post-traumatic stress disorder symptoms as measured by the Impact of Event Scale-22 (IES-22); T1 = within 4 months after the assault, T2 = 3 months after T1, T3 = 12 months after T1, T4 = 8 years after T1. *p < .10. **p < .05. ***p < .001.