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ホメオパシーの非有効性に関する二面的なメッセージにおける秩序と一貫性の効果を組み合わせる
Luisa Liekefett1, Julia C Becker1
1University of Osnabrück, Germany.
Personality & social psychology bulletin
|February 12, 2026
まとめ
信念を肯定する情報を最初に提示することは,科学への信頼を高め,ホメオパシーに関する信念に影響を与えることができます. しかし,二面的なメッセージは,全体的な信念を変えることにおいて,最終的に片面的なメッセージを上回ることはありませんでした.
科学分野:
- 科学の心理学 科学の心理学
- 信念の形成について
- 科学コミュニケーション サイエンス・コミュニケーション
背景:
- 個人は,科学的なコンセンサスが個人的な信念と矛盾すると,しばしばそれに抵抗する.
- 難しい科学的情報を効果的に伝える方法を理解することは極めて重要です.
研究 の 目的:
- 信条の順序が,信条に挑戦し,信条を肯定する情報に提示されたときに,信条の変化にどのように影響するか調査する.
- 信念の変化を媒介する認識された信頼性の役割を調べる.
主な方法:
- 3つの実験 (Ntotal = 1,124) では,ホメオパシー支持者に対して,さまざまな順序で,信念に挑戦し,信念を肯定する情報を与えました.
- ホメオパシー科学の信頼感は,研究1と2の情報プレゼンテーションの間に測定されました.
- ホメオパシーの有効性に対する信念は,メッセージの暴露後に評価されました.
主要な成果:
- 信念を否定する情報より前に信念を肯定する情報を提示することで,ホメオパシー科学に対する信頼が高く報告されました.
- この順序は,参加者がホメオパシーが効果的でないと報告する確率も増加させた.
- 信念の変化に対するオーダー効果は,信頼性の中間測定に依存しており,一貫性効果を示唆しています.
結論:
- 情報提示の順番は,信頼感と,その後の信念の変化に大きな影響を与えます.
- 暫定的な信頼性評価は,潜在的に一貫性効果を通じて,信念の変化を媒介することができます.
- この文脈で,双方向のメッセージは,片方向のメッセージと比較して,信念の変化に優越した効果を示さなかった.
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