TABLE 3.

Descriptive statistics and internal consistency for DEX-R items and total score.

Item	Mean (SD)	Item-total correlation	Cronbach’s α if item deleted
1. Impulsivity	1.06 (0.81)	r = 0.38	0.93
2. Prospective memory	1.13 (0.96)	r = 0.60	0.93
3. Apathy	1.14 (0.93)	r = 0.46	0.93
4. Initiation	1.40 (1.10)	r = 0.68	0.93
5. Planning	0.90 (1.02)	r = 0.50	0.93
6. Social disinhibition	1.14 (0.90)	r = 0.56	0.93
7. Intention	1.38 (1.13)	r = 0.65	0.93
8. Verbal aggression	1.98 (0.89)	r = -0.02	0.94
9. Verbal fluency	1.38 (0.92)	r = 0.54	0.93
10. Anger	1.00 (0.86)	r = 0.43	0.93
11. Perseveration	0.56 (0.85)	r = 0.60	0.93
12. Performance monitoring	0.63 (0.64)	r = 0.43	0.93
13. Abstract thinking	0.62 (0.79)	r = 0.57	0.93
14. Metaworry	1.07 (1.08)	r = 0.60	0.93
15. Lack of concern	0.94 (1.05)	r = 0.17	0.93
16. Blunted affect 1	0.77 (0.91)	r = 0.41	0.93
17. Working memory	1.03 (0.96)	r = 0.63	0.93
18. Lack of social composure	1.03 (1.02)	r = 0.51	0.93
19. Insight	0.46 (0.81)	r = 0.65	0.93
20. Inertia	0.98 (0.98)	r = 0.47	0.93
21. Temporal sequencing	0.50 (0.79)	r = 0.57	0.93
22. Cognitive control	1.18 (1.04)	r = 0.65	0.93
23. Variable motivation	0.61 (0.85)	r = 0.57	0.93
24. Physical aggression	0.26 (0.66)	r = 0.38	0.93
25. Organizational ability	1.10 (1.09)	r = 0.58	0.93
26. Inability to inhibit responses	0.77 (0.85)	r = 0.59	0.93
27. Confabulation	0.14 (0.35)	r = 0.23	0.93
28. Emotional lability	0.37 (0.67)	r = 0.52	0.93
29. Distraction	1.33 (0.97)	r = 0.65	0.93
30. Restlessness	0.79 (0.81)	r = 0.47	0.93
31. Cognitive confidence	0.73 (0.76)	r = 0.42	0.93
32. Knowing doing dissociation	0.56 (0.77)	r = 0.57	0.93
33. Blunted affect 2	0.75 (0.85)	r = 0.57	0.93
34. Information processing	0.62 (0.90)	r = 0.61	0.93
35. No concern for social rules	0.59 (0.874)	r = 0.23	0.93
36. Complex attention	0.89 (0.84)	r = 0.50	0.93
37. Decision making	1.27 (1.09)	r = 0.64	0.93