Class stereotypes are simplistic generalizations about attributes, differences of the social class, and about roles of individuals and/or groups. Stereotypes provide perceives a basis to generate inferences about unseen or unobserved aspects of a stereotypic schema, enabling them to make conjectures beyond the information given. Multinomial Processing Tree Models (MPT) are theories about the decision processes that were involved in source monitoring and can provide separate parameters for source discrimination, item detection, and response bias...