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教育達成度と右翼権威主義の関係:不一致一卵性双生児研究
Nikolai Haahjem Eftedal1, Thomas Haarklau Kleppestø2, Nikolai Olavi Czajkowski1,3
1Department of Psychology, Promenta Research Centre, University of Oslo, Norway.
Personality & social psychology bulletin
|January 31, 2026
まとめ
教育達成度と右翼権威主義(RWA)は関連しているが、遺伝的要因および共有環境要因がこの関連の大部分を説明している。一部の共分散が残っており、これは因果関係または固有の環境的影響を示唆している可能性がある。
科学分野:
- 心理学
- 行動遺伝学
- 社会学
背景:
- 教育達成度と右翼権威主義(RWA)の間には負の相関が存在する。
- この関連の根本的な理由、特に因果関係と交絡因子の違いは、完全には理解されていない。
研究 の 目的:
- 双生児研究デザインを用いて、教育とRWAの関係を調査すること。
- 教育とRWAの共分散に対する遺伝的、共有環境的、および固有の環境的影響を区別すること。
主な方法:
- 構造方程式モデリング(ACE-βモデル)の枠組み内で、不一致双生児デザインの適応を採用した。
- 1264人のノルウェーの一卵性および二卵性双生児のデータを利用した。
- 遺伝的および共有環境的交絡因子を制御した。
主要な成果:
- 遺伝的交絡因子は、教育とRWAの共分散の25%を占めた。
- 共有環境交絡因子は、共分散の47%を説明した。
- 共分散の28%は未解明のままであり、因果関係または非共有環境の影響を反映している可能性がある。
- 子供時代の知覚された社会経済的地位(SES)は、共有環境交絡の約3分の1を説明した。
結論:
- 教育とRWAの関連の大部分は、遺伝的および共有環境的要因に起因する。
- 残りの共分散は、潜在的な因果関係または非共有環境からの影響を示唆している。
- 子供時代の知覚されたSESは、共有環境交絡を部分的に媒介するが、教育がRWAに及ぼす影響は、成人期の知覚されたSESによって媒介されない。
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