RICHARD J. FILE-MURIEL but applied their language faculty to convert the system into a full natural language (i.e. a creole). Schumann (1978) and Andersen (1980) hold that pidginization is characteristic of early second language acquisition in general. They claim that individual pidginization in early SLA persists when the learner is deprived of sufficient input from native speakers of the TL due to social, psychological, or physical distance from such speakers. In other words, pidginization is second language learning with restricted input. Andersen claims that restricted input is what promotes and prolongs pidginization: The factors that promote pidginization and cause it to persist, cut the learner off from adequate native input that he needs in order to learn to express himself in that language. Under these conditions the learner can, and certainly does, simply do without expressing certain meanings in the L2. But learners also create their own form-meaning relations in the L2 by making previously-learned forms take on the functions for which the learner has not acquired the TL forms (1980:275). Andersen proposes a language acquisition model for pidginization, depidginization, creolization, decreolization, and first and second language acquisition based partially on Schumann's 1978 revised model. Andersen treats pidginization, creolization, and early stages of first and second language acquisition as nativization or acquisition towards an internal norm, and depidginization, decreolization, and later stages of first and second language acquisition as denativization or acquisition towards an external norm. He also distinguishes between individual and group learning: Individual pidginization arises when the individual language learner processes linguistic input during SLA. Group pidginization, on the other hand, results from the communication of individual speakers who are undergoing individual pidginization. He concludes, that SLA and individual pidginization are really the same phenomenon, only the circumstances are different. Siegel (1997) notes that when social conditions are 'right,' leveling may occur in several ways. Gradual leveling results from a series of accommodation processes where people modify their speech by adapting to the speech of others. In other words, "dialect differences are reduced as speakers acquire features from other varieties as well as avoid features from their own variety that are somehow different"(128). He emphasizes the importance of child learners in