Relations entre lecture et vocabulaire chez des élèves ayant un trouble développemental du langage de 8 à 11 ans
Reading development requires the mobilization of several processes and particular knowledge from learning readers. Among these, vocabulary knowledge - i.e. the subset of a language’s lexicon known by a person - plays an important part in attaining a certain level of reading performance. Yet, students with Developmental Language Disorder (DLD) have a known limited vocabulary and weak lexical representations, which can become important obstacles in the development of their reading skill. It is against this background that our study makes its recommendation. As such, our research objectives are the following: 1) to verify if vocabulary and reading performances in three groups of participants (DLD participants, participants of the same chronological age and younger participants with the same reading level) differ depending on the group; 2) to establish the relationships between word identification and vocabulary dimensions depending on the group; and 3) to establish the relationships between reading comprehension and vocabulary dimensions depending on the group. To achieve these objectives, 27 DLD participants, 47 participants with the same chronological age and 25 younger participants with the same reading level were submitted to two vocabulary tests, respectively evaluating breadth and depth of vocabulary, as well as two reading tests, including a word identification test and a reading comprehension test. Following these tests, results have demonstrated a significant correlation between vocabulary breadth and word identification, as well as between vocabulary breadth and reading comprehension, in DLD participants. Furthermore, similar relationships were identified in both control groups. Thus, based on these results, we suggest that interventions aimed at developing vocabulary breadth should be encouraged for DLD students, especially at the beginning of their schooling career.
dysphasie developmental language disorder specific language impairment primary language impairment reading reading comprehension word identification vocabulary vocabulary depth vocabulary breadth