Table 2.

Means, standard deviations, skew, kurtosis, corrected item-total correlations, and squared multiple correlations for items on the DTS

	DTS items	DSM-IV symptom	Scale characteristics (n = 158)							Percentage of veterans endorsing symptoma
			M	S.D.	Skew	Kurtosis	Corrected rtotal	SMC	Alpha if deleted	No diagnosis (n = 32)	Other diagnosis (n = 32)	PTSD (n = 39)
1.	Painful images, memories or thoughts of the event	B1	2.59	2.50	0.43	−1.13	0.77	0.73	0.97	38	69	92
2.	Distressing dreams of the event	B2	1.95	2.60	0.90	−0.71	0.76	0.76	0.97	25	28	85
3.	Felt as though the event was re-occurring	B3	1.66	2.40	1.05	−0.35	0.71	0.66	0.97	16	28	77
4.	Upset by something which reminded you of the event	B4	2.26	2.39	0.61	−0.76	0.76	0.65	0.97	31	59	87
5.	Avoiding any thoughts or feelings about the event	C1	2.30	2.87	0.76	−1.02	0.78	0.68	0.97	16	50	90
6.	Avoiding doing things or going into situations which remind you about the event	C2	1.78	2.66	1.12	−0.28	0.81	0.73	0.97	19	34	74
7.	Found yourself unable to recall important parts of the event	C3	0.93	2.14	2.29	4.09	0.56	0.37	0.97	6	13	44
8.	Had difficulty enjoying things	C4	2.18	2.87	0.88	−0.79	0.80	0.76	0.97	13	53	80
9.	Felt distant or cut off from other people	C5	2.49	3.04	0.68	−1.17	0.83	0.82	0.96	13	56	82
10.	Been unable to have sad or loving feelings/generally felt numb	C6	1.89	2.71	1.10	−0.25	0.76	0.71	0.97	9	44	74
11.	Found it hard to imagine having a long life span and fulfilling your goals	C7	1.82	2.78	1.16	−0.23	0.76	0.68	0.97	6	44	69
12.	Had trouble falling asleep or staying asleep	D1	3.08	3.14	0.39	−1.43	0.82	0.74	0.97	31	69	95
13.	Been irritable or had outbursts of anger	D2	2.21	2.75	0.78	−0.98	0.82	0.78	0.97	13	56	82
14.	Had difficulty concentrating	D3	2.34	2.89	0.80	−0.88	0.85	0.80	0.96	13	53	92
15.	Felt on edge, been easily distracted, or had to stay ‘on guard’	D4	2.54	3.03	0.66	−1.21	0.87	0.79	0.96	16	56	87
16.	Been jumpy or easily startled	D5	2.25	2.97	0.88	−0.83	0.88	0.86	0.96	13	53	82
17.	Been physically upset by reminders of the event	B5	1.58	2.51	1.30	0.28	0.78	0.75	0.97	9	34	74

Notes. Standard error for skew = 0.19. Standard error for kurtosis = 0.38. SMC, standard multiple correlation.

^aEndorsement of each symptom (frequency >0) and experience of distress from that symptom (severity >0) within the past week.