Abstract
It has been frequently suggested that computer–mediated–communication (CMC) can help learners improve their oral proficiency. This study tested that suggestion by comparing the performance of 3 groups of learners (a control group, a synchronous CMC group, and an asynchronous CMC group) on 3 oral discussions tasks during the course of 1 semester. The number of idea units and words, the lexical richness and diversity, and the syntactic complexity of learner language served as dependent variables. Although this study confirmed a previously reported increase in quantity of language produced by students in the synchronous CMC group compared to the other two groups, the asynchronous CMC group did not outperform the control group. Furthermore, analyses of the quality of language indicated no significant differences among the 3 groups either lexically or syntactically.
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