The theory was originated by Henri Tajfel and his student, John Turner, in 1979.

The History of Social Identity Theory

Social identitytheory arose from Tajfels early work on social groups.

What Are the Major Differences Between the Two?

Three stylish young people sit on a rattan couch against a pink wall, surrounded by lush greenery. They all confidently look at the camera. They exude individuality and determination.

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These include:

Brewer MB.

In: Baumeister RF, Finkel EJ, eds.

Advanced Social Psychology: The State of the Science.

Oxford University Press; 2010:535-571.

Ellemers N,Social Identity Theory.