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    Pathways to Sociopathy: Twin Analyses Offer Direction.Nancy L. Segal - 1995 - Behavioral and Brain Sciences 18 (3):574-575.
    Understanding the bases of complex behavioral phenotypes, such as sociopathy, is assisted by an evolutionary approach, in addition to other theoretical perspectives. Unraveling genetic and environmental factors underlying variant forms of sociopathy remains a key challenge for behavioral science investigators. Twin research methods (e.g., longitudinal analyses; twins reared apart) offer informative means of assessing novel hypotheses relevant to sociopathic behaviors.
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  2.  9
    Pairs of Genetically Unrelated Look-Alikes.Nancy L. Segal, Brittney A. Hernandez, Jamie L. Graham & Ulrich Ettinger - 2018 - Human Nature 29 (4):402-417.
    Relationships of physical resemblance to personality similarity and social affiliation have generated considerable discussion among behavioral science researchers. A “twin-like” experimental design explores associations among resemblance in appearance, the Big Five personality traits, self-esteem, and social attraction within an evolutionary framework. The Personality for Professionals Inventory, NEO/NEO-FFI-3, Rosenberg Self-Esteem Scale, and a Social Relationship Survey were variously completed by 45 U-LA pairs, identified from the “I’m Not a Look-Alike” project, Mentorn Media, and personal referrals. The mean U-LA intraclass correlations were (...)
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    Advanced Mathematical Reasoning Ability: A Behavioral Genetic Perspective.Thomas J. Bouchard & Nancy L. Segal - 1990 - Behavioral and Brain Sciences 13 (1):191-192.