Looking back at what I have learned over the semester, one thing that comes to mind is the twin study that was conducted here at the University of Minnesota. In the study, 130 identical and fraternal twins were reunited after being separated immediately after birth and growing up in different families. When comparing the personalities of each twin, researchers found that identical twins who did not grow up together in the same environment were no more alike in personality than identical twins who did grow up in a shared environment. Researchers were able to conclude that shared environment plays very little role in the type of personality a person will have as an adult.
This finding was very surprising to me. I had always figured that how a person is raised and the type of environment that person is raised in would be a very important factor in determining a person's personality, but this is not the case. So when we want to claim that a person's personality is what it is because of how that person was raised as a child, we should think twice and consider other factors. The results also show the importance of genetic factors on personality, so we should also keep that in mind. I think the twin study is definitely something I'll remember five years from now.