Clark Doll test.

The Clark doll test demonstrated the negative effects of stereotyping and segregation in America. It shows the damage caused by racial segregation and racism on young children's perceptions of themselves. The test was conducted by Dr Kenneth Clark and his wife Mamie Clark. The test consisted of a child being shown a white and black doll, then there where asked a series of question which are shown in the clip. The research concluded that the black children often chose to play with the white dolls more than the black dolls. And the children also gave the white doll positive connotations whilst the black doll was given negative. 44% said the white doll looked like them , but many children refused to pick either doll and others reacted emotionally to the test and ran away.  The conclusion, the test proved that black children had internalized racism cause by being discriminated against.

However there where criticism over the study, that it was too experimental and that there was a lack of theory behind it. It was also said that because the test was conducted by a African American couple, that the outcome could have been rigged and intentional to show that African Americans are negatively stereotypes and that the test was biases.     
But then this could be counter argued with the fact that they didn't want to accept the major problem of racism and that society is too deeply embedded in the structure of segregation and divide.