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Introversion vs Extroversion Part II: Genes, gender and leadership

All In The Mind

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The Origins of Personality Traits: Genetic and Non-Genetic Factors

This chapter explores the genetic and non-genetic factors that contribute to personality traits, revealing that genes determine around 40-50% of adult personality while non-genetic factors influence the remaining 50-60%. It also discusses the limited long-term impact of parents on their children's personality, and highlights the challenge of studying the idiosyncratic random experiences that shape environmental effects on personality.

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