Abstract: 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 b...
(read more)
Topics: 
Linguistics
Natural language processing
Artificial intelligence