ESTIMATING STUDENTS' VOCABULARY KNOWLEDGE BY USING VOCABULARY SIZE TEST

Abstract
Assessing vocabulary is a crucial issue among the linguists, how many words are needed to understand a spoken or written English text. This paper describes the use of Vocabulary Size Test (VST) – a test to measures written receptive vocabulary size to estimate
students’ vocabulary knowledge. The use of VST has not been reported that it has been used in the context of Indonesia ELL. The monolingual version of VST was administered to the first and the fourth-year university students who were English major N=60. The
findings add indicated that the fourth-year students perform better than the first-year students. It means VST distinguishes learners of difference level of proficiency. VST provides teachers and researchers as a new alternative instrument to measure of written receptive vocabulary size.