Table 1.

Descriptive statistics

	M	SD	Min–Max	Skew
Pre-attack:
Symptomatology	33.58	17.99	4.00–89.00	.63
Stress-load	13.24	5.96	1.00–20.00	.64
Threat appraisal style	8.85	6.84	0.00–31.00	1.05
Positive appraisal style	15.04	6.62	0.00–28.00	−.12
Active coping style	23.60	9.20	1.00–45.00	−.11
Avoidant coping style	17.62	7.05	1.00–36.00	.06
Post-attack:
Know someone in/near attacks	.55	.80	0.00–3.00	1.24
Media exposure	2.63	.99	1.00–4.00	.00
9/11-specific threat appraisals	1.18	2.95	0.00–20.00	2.41
9/11-specific positive appraisals	20.73	8.77	1.00–39.00	−.01
9/11-specific active coping	32.73	14.98	0.00–69.00	.13
9/11-specific avoidant coping	13.43	7.73	0.00–34.00	.30
PTS symptoms	5.64	5.38	0.00–26.00	1.56
Functional impairment	.36	1.00	0.00–7.00	4.13