“Refining and Validating Paul Nation’sVocabulary Size Test for TOEFL Candidates inPakistan: An Item Discrimination and Predictive Validity Studyvocabulary size test” (2025) Linguistic Forum – A Journal of Linguistics, 7(2), pp. 1–30. Available at: https://linguisticforum.com/index.php/ling/article/view/281 (Accessed: 30 May 2026).