Personality and Prejudice: Extension to the HEXACO Personality Model CHRIS G. SIBLEY 1 * , JESSICA F. HARDING 1 , RYAN PERRY 1 , FRANK ASBROCK 2 and JOHN DUCKITT 1 1 The University of Auckland, New Zealand 2 Philipps-University of Marburg, Germany Abstract We modelled the associations between the HEXACO dimensions of personality, Social Dominance Orientation (SDO), Right-Wing Authoritarianism (RWA) and prejudice towards dangerous, derogated and dissident groups (N ¼ 454 undergraduates). Consistent with a Big-Five model, low Openness to Experience predicted RWA and therefore dangerous and dissident group prejudice. As predicted, low Emotionality (and Openness) rather than Agreeableness predicted SDO and therefore derogated and dissident group prejudice. Comparison with meta-analytic averages of Big-Five data supported expected similarities and differences in the association of Big-Five and HEXACO models of personality with ideology. Finally, Honesty-Humility simultaneously predicted increases in RWA but decreases in SDO, and thus opposing effects on prejudice. These opposing effects have gone unidentified in research employing Big-Five models of personality structure. Copyright # 2010 John Wiley & Sons, Ltd. Key words: attitudes; social groups; personality scales and inventories INTRODUCTION There has been a resurgence of interest in the personality dimensions that predict prejudice and related constructs in recent years. This charge was led by Ekehammar and Akrami (2003), among others, in their relatively recent work examining the associations between the widely recognized ‘Big-Five’ dimensions of personality and generalized prejudice. Historically, research had tended to focus on the construct of Authoritarianism, which was initially described as a personality trait or syndrome capturing individual differences in prejudice proneness (Adorno, Frenkel-Brunswik, Levinson, & Sanford, 1950). Prejudice, according to this earlier perspective, was generally viewed as a unidimensional negative or hostile attitude towards multiple groups. This view was consistent with Allport’s (1954) European Journal of Personality Eur. J. Pers. 24: 515–534 (2010) Published online 21 January 2010 in Wiley Online Library (wileyonlinelibrary.com) DOI: 10.1002/per.750 *Correspondence to: Chris G. Sibley, Department of Psychology, University of Auckland, Private Bag 92019, Auckland, New Zealand. E-mail: c.sibley@auckland.ac.nz Copyright # 2010 John Wiley & Sons, Ltd. Received 23 August 2009 Revised 6 November 2009 Accepted 8 November 2009