Average, Men Scored Higher Than Women On Psychopathy

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On average, men scored higher than women on psychopathy (Mmale = 2.48, SEmale = .05; Mfemale = 2.05, SEfemale = .03), narcissism (Mmale = 18.33, SEmale = .86; Mfemale = 13.49, SEfemale = .58), and Machiavellianism (Mmale = 3.82, SEmale = .09; Mfemale = 3.47, SEfemale = .05). The results from the independent t-tests indicated that there was a significant difference between males and females on psychopathy, t(202) = 7.08, p < .001, with a medium effect size, r = .45, on narcissism, , t(202) = 4.73, p < .001, with a medium effect size, r = .32, and on Machiavellianism, t(202) = 3.51, p = .001, with a small effect size, r = .24. Men and women were also different on many of the LIWC categories. On average, men were less authentic in their…show more content…
Main Analyses A median split was conducted to create high and low groups for all of the DT scores. To test our first hypothesis, a three-way analysis of variance (ANOVA) was conducted to determine if the effect of psychopathy, Machiavellianism, and deception was associated with changes in authentic discourse. Psychopathy, Machiavellianism, and ‘deceiver or not’ were entered as independent variables, and the LIWC category ‘authentic’ was entered as the dependent variable. The results of the analysis indicated that no significant interaction was found, F(1, 187) = 0.001, p = .91. Next, a two-way ANOVA was conducted to examine the effect of psychopathy and deception on power terms usage. Psychopathy and ‘deceiver or not’ were entered as the independent variables, and the LIWC category ‘power’ was entered as the dependent variable. The results of this analysis were also not statistically significant, F(1, 187) = 1.09, p = .37. Another two-way ANOVA was conducted to examine the effect of narcissism and communication condition on swear word usage. Narcissism and communication condition were added as independent variables and the LIWC category ‘swear’ was added as the dependent variable in the analysis. The results indicated that there was no statistically significant interaction effect between the two variables on swear word usage, F(1, 192) = 0.49, p = .48. Lastly, an additional 3-way ANOVA was conducted with the DT traits as independent variables
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