. Author manuscript; available in PMC: 2012 Oct 1.

Published in final edited form as: Behav Modif. 2012 Jun 7;36(4):580–599. doi: 10.1177/0145445512448097

Table 2.

Linear Change Models for PTSD and Depression During Treatment

Fixed effect	Linear change model	Model with additional symptoms	Conditional change model
PCL-M as dependent variable
Intercept (β₀₀)	59.21^** (1.25)	57.41^** (0.86)	40.28^** (1.97)
Slope (β₁₀)	−1.30^** (0.23)	−0.72^** (0.14)	−1.09^** (0.30)
BDI-II (β₂₀)	—	0.81^** (0.06)	0.76^** (0.08)
B DI-II × Slope interaction (β₁₀ × β₂₀)	—	—	0.02 (0.01)
BDI-II as dependent variable
Intercept (β₀₀)	25.50^** (1.01)	22.51^** (0.63)	22.61^** (0.63)
Slope (β₁₀)	−0.68^** (0.15)	−0.05 (0.11)	−0.54 (0.30)
PCL-M (β₂₀)	—	0.52^** (0.03)	0.49^** (0.04)
P CL-M × Slope Interaction (β₁₀ × β₂₀)	—	—	0.01 (0.01)

Note: PSTD = posttraumatic stress disorder; PCL-M = Posttraumatic Checklist–Military Version; BDI-II = Beck Depression Inventory–Second Edition.

p < .05.

^**

p < .01.