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Table 1 Descriptive and zero-order correlations between study variables (N = 326)

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)       
2 Competitive climate 3.35 0.84 .48 (.75)      
3 Dark Triad composite 2.25 0.75 .34 .19 (.88)     
4 Machiavellianism 2.48 0.93 .26 .21 .87 (.80)    
5 Psychopathy 2.77 0.75 .12 .01 .81 .61 (.78)   
6 Narcissism 2.19 0.91 .45 .25 .80 .55 .42 (.80)  
7 Positive attitude 2.07 0.90 .02 .04 .26 .25 .18 .21 (.87)
  1. Correlations of with a value of .11 and higher are significant at p < .05. Cronbach Alpha is reported in parentheses