“…Personality traits (e.g., big five, sensation seeking) have shown positive, but smaller coefficients (between zero and .35; e.g., Lesnik-Oberstein & Cohen, 1984;McCrae, Martin, Hřebíčková, Urbanek, Boomsma, Willemsen, & Costa, 2008;Vandenberg, 1972). Simon, Aikins, and Prinstein (2008) studied in a longitudinal design prerelationship similarity of adolescents that became a couple during the study. They found positive associations between mates' popularity, body appeal, self-rated depressive symptoms, and physical attractiveness indicating positive assortment (coefficients between .25 and .56).…”