研究采用纵向和横断面相结合的方法,基于25名二语学习者为期135天的书面语语料,以时间和英语水平为自变量,词汇的心理特征(具体程度、意象程度、意义丰富程度和熟悉程度)为因变量来考察二语学习者书面语词汇心理特征及其关系是否随着时间的推移和英语水平提高发生变化。研究结果显示:(1)随着二语学习者学习时间的推移和英语水平的提高,学习者的词汇具体程度、意象程度、意义丰富程度和熟悉程度也随之发生变化,其均值由高变低;(2)学习者词汇熟悉程度和意象程度、具体程度、意义丰富程度之间的关系随着时间的推移和英语水平的提高逐渐加强,而它们之间的相关性却随着时间的推移和英语水平的提高逐渐降低。鉴于此,在二语词汇习得研究中,要把学习者词汇心理特征以及特征构成的词汇网络发展作为评价二语学习者词汇能力发展的指标之一。
Based on a written English corpus of 25 Chinese learners of English over 135 days, the study aims to investigate whether or not word psycholinguistic features and their correlations change with the course of time and language proficiency by treating time and language proficiency as an independent variable and word psycholinguistic features as dependent variables in a combination of longitudinal and cross-sectional methods. The results show: (1) word psycholinguistic features change with the course of time and the development of language proficiency in that the values of concreteness, imagery, meaningfulness and familiarity become smaller than before respectively; (2)correlations between word psycholinguistics features such as concreteness, imagery, meaningfulness and familiarity turn stronger with the elapse of time and the growth of language proficiency. Therefore, it is assumed that word psycholinguistic features and their network might indicate the development of vocabulary competence of second language learners.
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