Michael Selinker's Interlanguage theory is a theory of second language acquisition that proposes that learners of a second language develop their own unique version of the target language, which he referred to as an "interlanguage."
According to the theory, the interlanguage is characterized by a number of features, including:
Limited but systematic knowledge of the grammar and vocabulary of the target language.
Transfer of grammatical rules and vocabulary from the learner's first language (L1).
Overgeneralization of grammatical rules and vocabulary from the L1.
Use of approximations or simplifications of the target language's grammar and vocabulary.
Use of strategies to compensate for gaps in knowledge or to facilitate communication.
The interlanguage is not a static entity but rather a constantly evolving system that reflects the learner's progress in acquiring the target language. It is also influenced by a variety of factors, including the learner's age, motivation, and learning environment.
Selinker's Interlanguage theory has been influential in the field of second language acquisition and has contributed to a better understanding of the process by which learners acquire a second language.
