Prejudice and Discrimination have been always controversial and it has become one of the crucial topics in the world of Social Psychology.
Henry Tajfel was a British social psychology who is well known for his SIT or Social Identity Theory; ‘Intergroup Discrimination’ (1970). This theory has been useful to identify the social causes of prejudice and as well as explaining individual differences. First of all, this study is aimed to show or demonstrate that merely putting or diving people into groups could cause them to discriminate the other group.
Tajfel’s procedure of the experiment involved two laboratory experiments. The subjects of the first experiment contained 64 boys, 14 and 15 year-old from a school in Bristol. The boys from each group knew each other well, since they were actually in the same houses at the school. The second experiment was similar to the first one, since 48 students also already knew each other.
In terms of stereotypes and his study, Tajfel proposed that Stereotyping or putting people into groups is based on a normal cognitive; we tend to group or categories things. By the statement, he meant that we see the people in our group are just the ‘same’ with us because there are certain similarities that makes us parallel with them and there’ll be a tendency of us calling the ‘same’ people “us” and those who are different or out-group “them”.
This study also has its weaknesses and strengths. One of the strengths; Laboratory experiment method, which makes him to able controlling the environment in terms of what the subjects had experienced during the test, therefore he can ensure that there are no influences that would change their behaviour later on. Manipulation of the environment also makes him able to obtain replication due to its standardness in procedures. However, since all of the participants were all male, similar age and came from the same country.