What Kinds of Evidence do Researchers Draw on when Considering the Effects of Nature and Nurture on Personality?

Personality is best described as what makes up a person, their traits and individual differences that make them unique. There has been much research undertaken as to what actually causes a personality to develop whether it is nature (genetically inherited) or by nurture (the environment) research has shown that it is a combination of both and this will be examined in this essay.
Human society is complex and this presents researchers with difficulties in measurement of the environmental effect and to define exactly what causes personality. …