Correspondent interference theory is a theory proposed in 1965 by researchers Edward E. Jones and Keith E. Davis. It is intended to explain why people use internal or external attributions to make the choices that they do. In life, people compare their actions with alternative actions to evaluate their choices. The covariation model is used to judge the degree to which that a person attributes their actions to internal or external motivations. The ultimate question of this theory "is displayed behavior expected by social role or is it a consequence of normal behavior?"