Table 2.

The 17-Item PTSD Checklist-Civilian Version (PCL-C)

Symptom Clusters	No.	PCL-C Items	a	b
Re-experiencing	1	Repeated disturbing memories, thoughts, or images	1.61	2.34
	2	Repeated disturbing dreams	1.31	1.01
	3	Suddenly acting or feeling as if a stressful experience were happening again	1.62	0.34
	4	Feeling very upset at reminders	3.67	2.44
	5	Physical reactions to reminders	2.92	−0.43
Avoidance/emotional numbness	6	Avoid thinking or talking about it	3.61	2.17
	7	Avoid activities or situations	3.00	−0.18
	8	Trouble remembering important parts	1.61	−0.59
	9	Loss of interest	0.50	0.88
	10	Feeling distant or cut off from others	0.83	1.69
	11	Feeling emotionally numb	1.33	0.51
	12	Feeling as if your future will somehow be cut short	0.76	0.58
Hypervigilance	13	Trouble falling or staying asleep	0.61	2.26
	14	Feeling irritable or having angry outbursts	0.66	1.20
	15	Difficulty concentrating	1.01	2.28
	16	Being super alert or watchful on guard	1.85	0.50
	17	Feeling jumpy or easily startled	2.26	0.60

^a, Discriminant parameters (boldface values represents highly discriminating)

^b, severity parameters (boldface values represents severe PTSD symptom).