Abstract
The study investigates derivational knowledge of second language (L2) learners as a function of four variables: learner proficiency, word family frequency, derived word frequency, and affix type as suggested by two affix difficulty hierarchies. Seventy-nine EFL learners at two proficiency levels received two tests, the VST - Vocabulary Size Test (Nation & Beglar, 2007) and a custom-made 'Derivatives Test', which included derived forms of VST base words. We performed the following within-participant comparisons: knowledge of base words and knowledge of their derived forms, knowledge of derived forms from high-, medium, and low-frequency word families and knowledge of derivatives at different affix difficulty levels. Knowledge of basewords and their derivatives was statistically equivalent for advanced learners. However, a difference was found between the categories for less advanced learners. The findings also revealed learner proficiency and base word frequency effects, partial support for the two affix difficulty hierarchies, and no support for the effect of derivative frequency.
Original language | English |
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Pages (from-to) | 229-258 |
Number of pages | 30 |
Journal | ITL - International Journal of Applied Linguistics (Belgium) |
Volume | 172 |
Issue number | 2 |
DOIs | |
State | Published - 22 Sep 2021 |
Bibliographical note
Publisher Copyright:© John Benjamins Publishing Company
Keywords
- Affix difficulty
- Derivational knowledge
- Derived words
- L2 vocabulary size
- Word families
- Word frequency
ASJC Scopus subject areas
- Language and Linguistics
- Education
- Linguistics and Language