From: The Dark Triad of personality and attitudes toward cognitive enhancement
 |  | M | SD | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
---|---|---|---|---|---|---|---|---|---|---|
1 | Trait competitiveness | 4.75 | 1.35 | (.89) | Â | Â | Â | Â | Â | Â |
2 | Competitive climate | 3.35 | 0.84 | .48 | (.75) | Â | Â | Â | Â | Â |
3 | Dark Triad composite | 2.25 | 0.75 | .34 | .19 | (.88) | Â | Â | Â | Â |
4 | Machiavellianism | 2.48 | 0.93 | .26 | .21 | .87 | (.80) | Â | Â | Â |
5 | Psychopathy | 2.77 | 0.75 | .12 | .01 | .81 | .61 | (.78) | Â | Â |
6 | Narcissism | 2.19 | 0.91 | .45 | .25 | .80 | .55 | .42 | (.80) | Â |
7 | Positive attitude | 2.07 | 0.90 | .02 | .04 | .26 | .25 | .18 | .21 | (.87) |