Respuesta :
Answer:
Henri Tajfel's greatest contribution to psychology was social identity theory. ... The central hypothesis of social identity theory is that group members of an in-group will seek to find negative aspects of an out-group, thus enhancing their self-image.
Explanation:
The greatest contribution that was made in psychology was social identity theory. It also said that people belonged to were an important source of pride and self-esteem.
What do you mean by groups?
Several individuals assembled forming a complete unit in a composition.
The major hypothesis of social identity theory is that in-group members will seek to find negative aspects of an out-group thereby enhancing the self-image.
Learn more about groups here:
https://brainly.com/question/15560909
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