Authors: Onuki, Y., Honda, H., & Ueda, K.
Title: What Stimuli Are Necessary for Anchoring Effects to Occur?
Journal(書誌情報）: Frontiers in Psychology
doi: 10.3389/fpsyg.2021.602372
論文URL: https://www.frontiersin.org/articles/10.3389/fpsyg.2021.602372/full
Abstract: The anchoring effect is a form of cognitive bias in which exposure to some piece of information affects its subsequent numerical estimation. Previous studies have discussed which stimuli, such as numbers or semantic priming stimuli, are most likely to induce anchoring effects. However, it has not been determined whether anchoring effects will occur when a number is presented alone or when the semantic priming stimuli have an equivalent dimension between a target and the stimuli without a number. We conducted five experimental studies (N = 493) using stimuli to induce anchoring effects. We found that anchoring effects did not occur when a number was presented alone or when phrases to induce semantic priming were used without presenting a number. These results indicate that both numerical and semantic priming stimuli must be presented for anchoring effects to occur. Our findings represent a substantial contribution to the literature on anchoring effects by offering insights into how these effects are generated.
著者Contact先の email: ueda[at]cs.c.u-tokyo.ac.jp（[at]を@に変更してください。）
日本語によるコメント（オプション，200-300字で）：数値の呈示が後続の（数値に関わる）判断に影響するというアンカリング効果は広く知られていますが、最初に呈示する情報が「数値」だけで良いのか、それとも数値でなくても後続の判断と「意味的に関係する情報」だけで良いのか、あるいは後続の判断と「意味的に関係する数値情報」が必要なのかは明確になっていませんでした。本論文は、「数値」の有無と「意味的に関係する情報」の有無をそれぞれ独立変数として同時に考慮することで、アンカリング効果を引き起こすには「意味的に関係する数値情報」が必要なことを実験的に示唆しました。

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