L1 Use, Lexical Richness, Accuracy and Complexity in CLIL and NON-CLIL Learners

2015

Abstract  As more focus on communication is promoted in Content and Language Integrated Learning (CLIL) classrooms and general proficiency is usually enhanced in these settings, this study aims to explore (i) whether a lower rate of L1 use, as regards interactional strategies and transfer lapses, is found in CLIL learners when compared to NON-CLIL learners; (ii) whether differences exist between both groups in lexical richness (type/token ratio and D), accuracy (word order and correct production of the definite and indefinite article) and syntactic complexity (production of simple and complex sentences and variety of tenses used); and (iii) whether L1 use correlates with lexical richness, accuracty and syntactic complexity. The analysis of an oral production task of two groups of fourteen-year-old Basque/Spanish bilingual students learning L3 English indicates that the CLIL group made lower use of the L1. The CLIL group also obtained better scores in lexical richness and general proficiency as well as in the correct production of definite and indefinite articles and in the use of complex clauses. No correlation was observed between L1 use and accuracy or syntactic complexity, suggesting that a decrease in L1 use is not always related to better performance in specific aspects of language or the use of more complex language.


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