This study was an attempt to investigate the effect of choice theory-based instruction on Iranian EFL learners' vocabulary achievement. To fulfil the purpose of this study, 60 female advanced EFL learners were selected from among a total number of 90 learners through their performance on a piloted sample Cambridge ESOL Certificate of Advanced…

This study investigated the receptive vocabulary growth of advanced EFL learners in an English-medium degree programme. The study used the Vocabulary Size Test in a cross-sectional design to measure the vocabulary size of learners at various stages of study. The effect of word frequency on vocabulary development and the presence of an…

To date, research into vocabulary learning strategies has mainly made use of questionnaires about studying preferences in general or of interviews following a specific study task, focusing on finding out which strategies were most popular. The present investigation attempts to provide more insight into the effects of the parameters of timing and…

This article reports the results of two studies on the vocabulary growth of advanced learners of English as a foreign language in an English-medium degree programme. Growth in learners' written receptive and productive vocabularies was investigated in one cross-sectional and one longitudinal study over three years. The effect of word frequency on…

This paper reports on a quasi-experimental study of the effect of different vocabulary study materials and strategies used by upper-intermediate English as a foreign language students in higher education. Students were assigned a selection of 163 words from the Academic Word List and were provided with different types of study materials. They were…