Genetic Influences on Personality

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‘Genetic influences appear to contribute significantly to the differences between people in personality’. Discuss.

The research carried out in the field of behavioural genetics has indicated, over the course of many studies, that genetic influence has a direct affect on individual differences in personality. Still, behavioural genetics has a lot to provide to the study of personality than inheritability predicts. This paper will discuss a few of the findings from research carried out on behavioural genetics in personality that go beyond the basic question; nature vs. nurture. The findings from the research include genetic continuity and environmental change during development, the impact of shared and non-shared environmental influences
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The solution will involve studying more than a single individual per family and discovering the association of experiential differences within a family with differences in personality.

Harris (1995) has stated that non-shared aspects outside the family maybe more important in developing people’s personality. He explained the importance of non-shared environmental aspects by presenting the groups socialisation theory to determine personality. Social Learning Theory and Social Categorisation are the main elements of group socialisation. In social categorisation, similar individuals are placed into their in groups and individuals who are viewed as being different are placed within their out group. Harris utilised this concept to present how social groups can have an influence on people’s personality and how these non-shared environments that occur in children of the same family can have huge effects on personality. It has been possible to obtain encouraging results when associating non-shared environmental aspects to personality. For example, in the Sibling Inventory of Differential Experience (SIDE; Daniels & Plomin, 1985), sibilings that had different experiences were linked with the personality differences in adolescence and adulthood (Baker & Daniels, 1990; Daniels, 1986).

However, it is not entirely correct
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