Interaction Hypothesis of Long is an extension of the Input hypothesis. Long (1983, 1985) argued that in addition to simplification and contextual clues, input can becomes comprehensible also through modifying the interactional structure of conversation. Such modifications take place when communication is not successful; therefore, the participants in the communication start to negotiate to look for solutions to the problem. “As they negotiate, they work linguistically to achieve the needed comprehensibility, whether repeating a message verbatim, adjusting its syntax, changing its words, or modifying its form and meaning in a host of other ways” (Pica, 1994: 494). This suggests that negotiated interaction, thus, makes input become comprehensible, which, in turn, leads to further acquisition of language. …show more content…
Very simply it can be claimed that, as Gass and Mackey (2006) rightly maintain, this new model of the Interaction Hypothesis connects exposure to language (input), production of language (output), and corrective feedback on production (interaction) as three important environmental factors for the acquisition of second language to develop.
There is a general belief that supports input simplification, that is, linguistic manipulation of the text will improve L2 comprehension. So many materials which are published commercially have taken this technique(Yano et al., 1994). On the contrary, several other researchers, for instance, Blau (1982), have questioned the mechanism of simplification since (a) simplification does not necessarily enhance the comprehension of input and (b) some items in the input that the learner should learn are simply removed (Long, 1983; Yano et al.,