Psychometric Properties of the Posttraumatic Stress Disorder Checklist among the Lebanese Population Exposed to the Beirut Explosion: A Cross-Sectional Study during the COVID-19 Pandemic

Table 3

Cronbach’s alpha, CR, AVE, and bivariate correlations among constructs.

#	Constructs	1	2	3	4	Alpha	CR	AVE
1	Intrusive symptoms	0.92				0.93	0.94	0.85
2	Avoidance of thoughts	0.38	0.90			0.93	0.90	0.81
3	Negative alterations to mood	0.49	0.32	0.71		0.92	0.84	0.51
4	Alterations in lifestyle	0.48	0.35	0.45	0.67	0.62	0.72	0.58
	Total PTSD scale					0.94	0.97	1.34

CR: composite reliability; AVE: average variance extracted. Note: the diagonal line presents the squared root of AVE.