Table 3.

Growth Curve Models with Pre-treatment ASI Predicting Change in PDS

Analysis	Coefficient/Predictor	Outcome	Level-1 Intercept (Initial Status)			Linear Change (Assessment #)			Quadratic Change (Assessment#2)
			b	t	d	b	t	d	b	t	d
Analysis 1
	Level-2 Intercept	PDS Total	28.65*	26.74	7.15	−2.67*	−3.21	−0.86	0.08	0.84	0.23
	Total ASI		0.22*	2.69	0.72	−0.13*	−2.35	−0.63	0.01*	2.23	0.60
Analysis 2
	Level-2 Intercept	PDS Total	28.69*	36.12	9.74	−2.62*	−3.18	−0.86	0.08	0.79	0.21
	Total ASI		0.14*	2.67	0.72	−0.11*	−2.02	−0.55	0.01a	1.92	0.52
	TOTAL CAPS		0.32*	7.44	2.01	−0.08	−1.41	−0.38	0.01	1.23	0.33
Analysis 3a
	Level-2 Intercept	PDS Total	28.67*	26.18	7.00	−2.69*	−3.22	−0.86	0.08	0.87	0.23
	ASI Physical		0.34*	2.36	0.63	−0.22	−2.36	−0.63	0.02*	2.27	0.61
Analysis 3b
	Level-2 Intercept	PDS Total	28.64*	27.16	7.26	−2.63*	−3.06	−0.82	0.08	0.76	0.20
	ASI Mental		0.81*	2.86	0.76	−0.35*	−2.29	−0.61	0.04*	2.29	0.61
Analysis 3c
	Level-2 Intercept	PDS Total	28.67*	26.95	7.20	−2.68*	−3.21	−0.86	0.08	0.85	0.23
	ASI Social		1.29*	2.82	0.75	−0.73	−1.53	−0.41	0.07	1.25	0.33
Analysis 4a
	Level-2 Intercept	PDS Rex	7.08*	15.95	4.26	−0.61*	−2.21	−0.59	0.00	0.16	0.04
	Total ASI		0.08*	2.47	0.66	−0.02	−1.33	−0.35	0.00	1.12	0.30
Analysis 4b
	Level-2 Intercept	PDS Avd	3.80*	17.73	4.74	−0.45*	−3.75	−1.00	0.02	1.38	0.37
	Total ASI		0.02	1.59	0.42	−0.02*	−2.10	−0.56	0.002*	2.11	0.56
Analysis 4c
	Level-2 Intercept	PDS En	5.11*	16.08	4.30	−0.56*	−2.99	−0.80	0.02	1.05	0.28
	Total ASI		0.03	1.06	0.28	−0.03*	−2.58	−0.69	0.004*	2.34	0.63
Analysis 4d
	Level-2 Intercept	PDS HA	9.83*	26.91	7.19	−1.11*	−4.55	−1.22	0.07*	2.30	0.61
	Total ASI		0.07*	2.98	0.80	−0.04*	−2.52	−0.67	0.004*	2.41	0.64

Note.

^*p < .05;

b = unstandardized regression; t = t statistic; d = Cohen’s d (0.02 = small; 0.05 = medium; 0.08 = large); ASI = Anxiety Sensitivity Index; PDS = Posttraumatic Diagnostic Scale.