Table 1 The NPI-21 items according to factors.

1. I have a natural talent for influencing people

8. I will be a success

10. I see myself as a good leader

11. I am assertive

33. I would prefer to be a leader

4. I know I am good because everybody keeps telling me so

15. I like to display my body

19. I like to look at my body

20. I am apt to show off if I get the chance

26. I like to be complimented

29. I like to look at myself in the mirror

16. I can read people like a book

21. I always know what I am doing

22. I rarely depend on anyone else to get things done

31. I can live my life in any way I want to

35. I can make anybody believe anything

2. Modesty does not become me 9. I am an extraordinary person

18. I want to amount to something in the eyes of the world

34. I am going to be a great person

36. I am born a leader