Merton's Strain Theory proposes that individuals respond to societal pressures or "strain" in different ways depending on their position in the social structure. There are five types of responses: conformity, innovation, ritualism, retreatism, and rebellion. Conformity involves accepting both cultural goals and legitimate means, while innovation accepts goals but rejects means. Ritualism rejects goals but accepts means by rigidly following rules. Retreatism rejects both goals and means through dropping out, and rebellion does so by replacing existing systems with new revolutionary goals and means.