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A vocabulary-size test of controlled productive ability

Laufer, Batia, Nation, Paul·1999·Language Testing

Abstract

It is important in the design of the vocabulary component of a teaching program that teachers are able to discover the state of their learners’ vocabulary knowledge. It is also important that researchers can draw on a variety of vocabulary measures to investigate the nature of vocabulary growth. This study focuses on a controlled production measure of vocabulary consisting of items from five frequency levels, and using a completion item type like the following. The garden was full of fra flowers. The controlled-production vocabulary-levels test was found to be reliable, valid (in that the levels distinguished between different proficiency groups) and practical. There was a satisfactory degree of equivalence between two equivalent forms of the test.

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Research works printed but not linked: 19

  1. 10.1177/026765839401000203 · DOI
  2. Francis, W. N., 1982, Frequency analysis of English usage
  3. Frederiksen, J. R., 1982, Advances in the psychology of human intelligence
  4. 10.1093/applin/11.4.341 · DOI · Paper page
  5. 10.2307/3586977 · DOI · Paper page
  6. Henning, G., 1991, A study of the effects of contextualisation and familiarisation on responses to the TOEFL vocabulary test items
  7. Joe, A. 1994: The effects of text-based tasks on incidental vocabulary learning. Unpublished MA thesis. Victoria University of Wellington, New Zealand.
  8. 10.1177/026553228500200108 · DOI
  9. 10.1177/026553228400100202 · DOI
  10. 10.1093/applin/16.3.307 · DOI · Paper page
  11. 10.1177/026553228700400202 · DOI · Paper page
  12. Nation, I. S. P., 1983, Guidelines, 5, 12
  13. Nation, I. S. P., 1990, Teaching and Learning Vocabulary
  14. 10.1016/0346-251X(94)00050-G · DOI · Paper page
  15. Paul, P. V., 1990, Using three test formats to assess good and poor readers’ word knowledge
  16. 10.1177/026553228700400201 · DOI
  17. 10.1177/003368828801900202 · DOI · Paper page
  18. Read, J., Testing vocabulary knowledge and use
  19. 10.2307/3585941 · DOI · Paper page

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Metadata

Authors
Laufer, B., & Nation, P.
Venue
Language Testing
Published
1999-01
Volume
16
Issue
1
Pages
33-51
ISSN
  • 0265-5322 (ISSN-L)
  • 1477-0946
OpenAlex
W2047328202
Cited by
780
References
0
FWCI
8.33
Type
journal article
Language
en
Open access
closed
Licence
journals.sagepub.com/page/policies/text-and-data-mining-license (tdm)

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CoChat. (2026). Citation check: A vocabulary-size test of controlled productive ability. https://app.cochat.ai/papers/10.1177/026553229901600103
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Laufer, B., & Nation, P. (1999). A vocabulary-size test of controlled productive ability. Language Testing. https://doi.org/10.1177/026553229901600103

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