[Solved] What number reflects the amount of differences in a population attributable to genetic influences? A)concordance B)heritability C)eugenics index D)correlation coefficient Categories: Groups or classes that items, ideas, or people are divided into based on shared characteristics or traits. Developmental Psychology: A branch of psychology that studies the psychological growth of individuals throughout their lifespan, focusing on how they develop cognitively, emotionally, and socially. Learning Processes: The ways in which individuals acquire new information, behaviors, skills, values, or understanding through experience. American Psychology: A branch of psychology concerned with the study of behavior and mental processes within the context of American society and culture.