Table 3.

Correlations Between the PreCL and PCL, Between Subsets of Items Within each Scale, and with Measures of Earlier Traumatic Events, Depression and Neuroticism

	Measurement Times Before, During and after Deployment
	Before	During	Return +3 mo.
Correlations	r	r	r
Between PreCL and PCL
Sums of items 1 to 8	.56	.60	.77
Sums of items 9 to 17	.85	.82	.90
Sums of all items	.79	.79	.89
Between sums for items 1 to 8 and 9 to 17
Within PreCL	.62	.57	.70
Within PCL	.60	.59	.72
PreCL and TLEQ, BDI-II, and Neuroticism
TLEQ (Before)	.36	.35	.29
BDI-II (Before)	.74	.40	.33
Neuroticism (Before)	.45	.34	.26
PCL and TLEQ, BDI-II, and Neuroticism
TLEQ (Before)	.43	.39	.30
BDI-II (Before)	.76	.51	.36
Neuroticism (Before)	.49	.40	.30

Note: PreCL: Pre-traumatic Stress Reactions Checklist; PCL: PTSD Checklist; TLEQ: Traumatic Life Event Questionnaire; BDI-II: Beck Depression Inventory; ns = 203–218; for the correlations: all ps<.0005; Items 1 to 8 are temporally reversed in the PreCL