In order to understand the meaning of a written text, it is generally accepted that a reader should understand an average of nineteen out of twenty words, and this is referred to as “95% coverage.” Given the popularity and importance of proficiency tests in second language acquisition, this study explores how much vocabulary a learner needs to know in order to be able to read and understand TOEIC, TOEFL and EIKEN proficiency tests. The vocabulary from several retired tests was compared to the vocabulary on three criterion lists: a high-frequency word list from the British National Corpus, the Standard Vocabulary List, and Nation’s 14K word-family list. We were able to determine that in order to gain 95 percent coverage on TOEIC, a reader would need a minimum vocabulary size of 4,000 words, or 3,000 word families. TOEFL requires a 4,500-word vocabulary, or 3,500 word families, and a 5,500-word vocabulary, or 4,500 word families, is needed for EIKEN Pre-1st Grade. We also found that recent (2005/2006) versions of these tests require a smaller vocabulary compared to earlier versions. In addition, the SVL appears to provide a more accurate range of vocabulary for the lower level EIKEN tests but that a high correlation among results for the three criterion lists indicates these are stable and effective tools for determining text coverage vocabulary size.
목차
ABSTRACT INTRODUCTION Understanding Text Coverage Aims of the Present Study METHOD Understanding Criterion Vocabulary Lists Proficiency Tests Examined Calculation of Vocabulary Level RESULTS AND DISCUSSION How Many Words are Needed to Cover 95% of the TOEIC Vocabulary? How Many Words are Needed to Cover 95% of the TOEFL Vocabulary? How Many Words are Needed to Cover 95% of the EIKEN Vocabulary? Is there any Difference in Vocabulary Level Between the Original Tests and the Recently Revised Versions? How do the Different Criterion Vocabulary Lists Affect the Vocabulary Level of the Tests? CONCLUSION THE AUTHORS REFERENCES APPENDIX
키워드
text coveragevocabulary sizeproficiency testscriterion vocabulary lists
The goals of Asia TEFL are to promote scholarship, disseminate information, and facilitate cross-cultural understanding among persons concerned with the teaching and learning of English in Asia. In order to accomplish this, Asia TEFL will pursue the following goals:
1. To link ELT professionals in joint research on issues and concerns regarding English teaching and learning in the Asian context.
2. To publish an academic journal, The Asia TEFL Journal, as an internationally recognized journal in the field of English language teaching.
3. To host conferences and seminars addressing important issues concerning ELT in Asia.
4. To develop proficiency guidelines and assessment methods designed for the needs of the Asian context.
5. To develop programs for Asian learners and teachers of English to build their English language proficiency and cultural understanding and provide them with the skills required to be efficient English teaching professionals.