Poor oral discourse skills are the key cognitive

Prior research on reading difficulties has mainly focused on word decoding problems. However, there exists another group of children – poor comprehenders (PCs) – who have normal word decoding abilities but difficulties in reading comprehension. Less is known about PCs especially in non-alphabetic languages such as Chinese. This study identified three groups – poor decoders, PCs, and average readers – among 103 Chinese children at the end of first grade. Children’s performances in reading and cognitive-linguistic measures, both concurrently at first grade and retrospectively at kindergarten levels two and three, were then compared among the three groups. This study is the first to demonstrate the distinct cognitive profiles of poor decoders and PCs in Chinese. The key cognitive-linguistic weaknesses of Chinese PCs were found to be in oral discourse skills and working memory. The retrospective data further revealed their oral discourse weakness as early as in preschool years at age 5. Practically, the necessity of developing assessment and intervention tools that focus on oral discourse skills for Chinese PCs is highlighted