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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Mark Zanna ： ウィキペディア英語版 Mark Zanna Mark Zanna, Ph.D. (Yale), FRSC, is a social psychologist at the University of Waterloo. He is well known for his work on attitudes and intergroup relations. ==Research== A major debate among attitude researchers in the 1970s concerned whether cognitive dissonance theory or self-perception theory best accounted for how people's attitudes change. While at Princeton University, Zanna and Joel Cooper conducted a landmark experiment that resolved the discrepancy in favor of cognitive dissonance. They demonstrated that arousal is necessary for some instances of attitude change—a precondition specified by dissonance theory but not by self-perception theory.〔Zanna, M. & Cooper, J. (1974). Dissonance and the pill: An attribution approach to studying the arousal properties of dissonance. ''Journal of Personality and Social Psychology'', ''29'', 703-709.〕 Zanna also demonstrated the existence of self-fulfilling prophecies within intergroup interactions.〔Word, C. O., Zanna, M. P., & Cooper, J., (1974). The nonverbal mediation of self-fulfilling prophecies in interracial interaction. ''Journal of Experimental Social Psychology'', ''10'', 109–120.〕 At the time, one explanation for why white Americans tended to be hired more often than African Americans was that African American candidates tended to perform poorly in job interviews (i.e., that it was due to actual performance, not prejudice on the part of white interviewers). Zanna and his fellow researchers demonstrated that it was actually non-verbal cues on the part of white interviewers that elicited poor performance from African American candidates. That is, interviewers expected African American candidates to perform poorly and treated them more coldly, causing poor performance in response. In a subsequent experiment, the researchers demonstrated that white candidates performed just as poorly when the interviewer treated them the way the previous African American candidates had been treated. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mark Zanna」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.