Lexicon and text understanding : Multidimensional word knowledge and word meaning in text/discourse comprehension

我们开发了两个日语词汇测试，词义测试和词汇联想测试，并进行了大规模的研究，第二语言（L2）的学习者在中级到高级上级水平和母语为日语。研究结果表明，词汇知识的发展受词频和词类、知识成分、母语背景等因素的影响，涉及到数量和质量的变化。我们还实证研究了多维词汇知识与二语阅读的关系。此外，我们还对词汇的形式、意义和在语境中的使用等语言特征进行了理论和描述性研究。

We developed two vocabulary tests in Japanese, Word Meaning Test and Word Association Test, and conducted a large scale study for second language(L2) learners at intermediate to superior levels and native speakers of Japanese. The results indicated that the development of word knowledge is influenced by factors such as word frequency and type, knowledge component, and L1 background, involving quantitative and qualitative changes. We also investigated empirically into the relation between multidimensional word knowledge and L2 reading in Japanese and English. Furthermore, we conducted theoretical and descriptive research on linguistic features of lexical form, meaning, and use in context.