Table 2 Descriptive statistics, item-total correlation, and confirmatory factor analysis.

	Descriptive statistics				Properties	Confirmatory factor analysis
	M	SD	SK	K	Adj. r_it-tot	λ	R²
Item#1	3.49	1.097	− 0.455	− 0.292	0.769	0.850	0.722
Item#2	3.22	1.059	− 0.252	− 0.377	0.853	0.934	0.872
Item#3	3.15	1.125	− 0.158	− 0.691	0.845	0.922	0.850
Item#4	2.93	1.112	0.054	− 0.686	0.792	0.881	0.777
Item#5	2.64	1.232	0.227	− 0.914	0.633	0.850	0.723
Item#6	2.59	1.321	0.278	− 1.112	0.673	0.798	0.636
Item#7	2.60	1.355	0.369	− 1.072	0.582	0.706	0.498
Item#8	2.59	1.189	0.274	− 0.805	0.746	0.823	0.677
Item#9	2.58	1.200	0.361	− 0.725	0.654	0.783	0.614
Item#10	2.36	1.176	0.507	− 0.687	0.649	0.769	0.591
Item#11	2.76	1.236	0.145	− 0.899	0.778	0.886	0.786
Item#12	2.88	1.174	− 0.087	− 0.779	0.651	0.778	0.605
Intrusion	12.78	3.942	− 0.332	− 0.192	0.569	0.736	0.542
Avoidance	10.42	4.147	0.112	− 0.808	0.412	0.533	0.284
Hyperarousal	10.57	3.959	0.160	− 0.535	0.649	0.997	0.995
Post− Traumatic Symptoms	33.77	9.639	− 0.378	0.009	–	–	–

M Mean, SD Standard deviation, SK Skewness, K Kurtosis, Adj. r_it-tot adjusted Item-total correlation, λ standardized factor loading, R² explained variance.

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