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Comprehensible input hypothesis. The input hypothesis, also known as the monitor model, is a group of five hypotheses of second-language acquisition developed by the linguist Stephen Krashen in the 1970s and 1980s.
In addition, Krashen (1982)’s Affective Filter Hypothesis holds that the acquisition of a second language is halted if the learner has a high degree of anxiety when receiving input. According to this concept, a part of the mind filters out L2 input and prevents intake by the learner, if the learner feels that the process of SLA is threatening.
Stephen Krashen took a very strong position on the importance of input, asserting that comprehensible input is all that is necessary for second-language acquisition. [37] [38] Krashen pointed to studies showing that the length of time a person stays in a foreign country is closely linked with their level of language acquisition. Further ...
The comprehensible output theory is closely related to the need hypothesis, which states that we acquire language forms only when we need to communicate or make ourselves understood. [4] If this hypothesis is correct, then language acquirers must be forced to speak. According to Stephen Krashen, the Need Hypothesis is incorrect.
Stephen Krashen received a Ph.D. in Linguistics from the University of California, Los Angeles in 1972. [2] Krashen has among papers (peer-reviewed and not) and books, more than 486 publications, contributing to the fields of second-language acquisition, bilingual education, and reading. [3]
The input hypothesis. This states that language is acquired by exposure to comprehensible input at a level a little higher than that the learner can already understand. Krashen names this kind of input "i+1". [10] The natural order hypothesis. This states that learners acquire the grammatical features of a language in a fixed order, and that ...
Similar to Krashen's input hypothesis, the interaction hypothesis claims that comprehensible input, which is characterized as a variety of language that can be understood by a learner, [3] is important for language learning. There are a number of ways in which input may be modified for the benefit of the learner.
The theory has often been extended to a critical period for second-language acquisition (SLA). David Singleton states that in learning a second language, "younger = better in the long run", but points out that there are many exceptions, noting that five percent of adult bilinguals master a second language even though they begin learning it when they are well into adulthood—long after any ...