二语阅读理解中多维度词汇知识的直接与间接作用考察

An Investigation into the Direct and Indirect Contributions of Multi-dimensional Vocabulary Knowledge in Second Language Reading Comprehension

基于词汇知识三维度理论模型,考察词汇宽度、词汇深度和词汇流利度对二语阅读理解的直接和间接作用。词汇深度包括词汇语义深度和词法深度两个层面。研究结果发现:词汇宽度和词汇语义深度对二语阅读理解有直接贡献;词法深度通过词汇宽度和词汇语义深度间接作用于二语阅读理解;词汇流利度通过词汇宽度间接作用于二语阅读理解。研究结果揭示了多维度词汇在二语阅读理解中的作用机制及其交互关系。

Based on the theoretical model of vocabulary knowledge of three dimensions, the present study examines the direct and indirect contributions of the three dimensions of vocabulary knowledge, namely vocabulary breadth, vocabulary depth and vocabulary fluency, to second language reading comprehension. Vocabulary depth involves semantic depth and morphological depth. The research results indicate three finds. Firstly, both vocabulary breadth and semantic depth contribute directly to second language reading comprehension, where vocabulary breadth have a stronger effect. Secondly, morphological depth contributes indirectly to second language reading comprehension via both vocabulary breadth and semantic depth, where the indirect effect via vocabulary breadth is fully mediated but that via semantic depth partially mediated. Thirdly, vocabulary fluency makes indirect contribution to second language reading comprehension via vocabulary breadth, which is also fully mediated. The results suggest how the multi-dimensions of vocabulary knowledge contribute to second language reading comprehension and also how they interact with each other in second language reading comprehension.