Functionalism: A theoretical perspective based on the notion that social events can best be explained in terms of the functions they perform – that is, the contributions they make to the continuity of a society.
Conflict: A theory which argues that deviance is deliberately chosen and often political in nature.
Symbolic Interactionism: A theoretical approach in sociology developed by George Herbert Mead, which emphasizes the roles of symbols and language as core elements of all human interaction.
Giddens, Anthony. Essentials of Sociology. New York: W.W. Norton & Co, 2008. Print.