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...... Much of this appears to come down to a childs natural impulse to categorize the elements of their world. In a study conducted by Vittrups mentor, tree pre-school groups were randomly given blur and red shirts, half for each, that they wore for three weeks. Without any reinforcement or encouragement from instructors, and indeed without even showing outward changes in behaviors or attitudes, the children showed a clear preference for their own group based on interviews at the end of the study. This suggests a certain in-group favoritism already at work by the age of three years old. In another experiment, decks of cards depicting people were split by children into two groups any way they wished; 68% divided the cards according to race. The color difference is something children notice naturally, and not talking about it only piques their curiosity until the moment comes when they are given a key to the difference
Simple exposure to diversity is not an adequate method for eliminating the perception of racial divisions. In fact, studies that examined the levels of integration in schools found that the more diverse a student population was, the more likely the students were to self-segregate based

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