Contribution of English aural vocabulary size levels to L2 listening comprehension

Abstract

Abstract This study investigated the relationship between English aural vocabulary size and L2 listening comprehension among 288 Chinese tertiary EFL learners who had mastered the first 1,000-word frequency level and were at the intermediate level of language proficiency. The Listening Vocabulary Levels Test and College English Test Band 4 were employed to measure participants’ aural vocabulary size and L2 listening comprehension proficiency, respectively. Aural vocabulary size was found to be moderately correlated with L2 listening comprehension proficiency (r = 0.38, p < 0.01). A step-wise regression analysis showed that the second 1,000-word frequency level could explain 12% of the variance in L2 listening comprehension proficiency, and academic words could add an additional 4% predictive capacity to the regression model. A hierarchical regression analysis revealed that the most frequent 2,000-word families and academic words could predict 14.5% of the change in L2 listening comprehension proficiency for the relatively low L2 proficiency group. However, aural vocabulary size had little impact on L2 listening comprehension proficiency for the relatively high L2 proficiency group. Findings suggest that high-frequency and academic words significantly contribute to the prediction of L2 listening comprehension proficiency, but the predictive power of aural vocabulary size decreases with increased language proficiency.