量刑分布グラフによるアンカリング効果についての実験的検証  [in Japanese] Experimental verification of the anchoring effect of a punishment reference histogram  [in Japanese]

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Author(s)

    • 綿村 英一郎 Watamura Eiichiro
    • 慶応義塾大学文学部|独立行政法人日本学術振興会 Faculty of Letters, Keio University|Japan Society for the Promotion of Science
    • 分部 利紘 Wakebe Toshihiro
    • 東京大学大学院医学系研究科|独立行政法人日本学術振興会 Graduate School of Medicine, The University of Tokyo|Japan Society for the Promotion of Science

Abstract

This study verified the influence of a punishment reference histogram on the sentences of lay judges. In Experiment 1, 80 undergraduates determined the prison terms of an offender in an audio trial. About half the students were shown a histogram with a peak of the punishment meted out in similar cases and the remainder a histogram without it. The peak was set as a relatively short prison term (5–10 yrs) considering the seriousness of the crime (murder). The result indicated that the peak-histogram group chose significantly shorter prison terms than did the non-peak-histogram group, suggesting that the peak influenced the former's sentencing. Moreover, Experiment 2 showed that the peak of the histogram influenced participant sentencing more strongly than a table, although both held the same punishment data, and that the same shaped histogram of different data did not. From these results, we concluded that the anchoring effect of the histogram is most likely to be caused by the visual attractiveness of the peak.

Journal

  • Japanese Journal of Social Psychology

    Japanese Journal of Social Psychology 30(1), 11-20, 2014

    The Japanese Society of Social Psychology

Codes

  • NII Article ID (NAID)
    110009851556
  • NII NACSIS-CAT ID (NCID)
    AN10049127
  • Text Lang
    JPN
  • ISSN
    0916-1503
  • NDL Article ID
    025703856
  • NDL Call No.
    Z6-2798
  • Data Source
    NDL  NII-ELS  J-STAGE 
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