The Effect of Concordance Enriched Instruction on the Vocabulary Learning and Retention of Iranian EFL Learners

This study investigated the effect of enriching the vocabulary instruction with the printouts of concordance lines on learning and retention of Iranian EFL students. 70 students participated in the study. The experimental group received instruction which was enriched with concordance printouts, while the control group received the conventional instruction. Both groups completed a pretest, a posttest, and a delayed vocabulary recall test. For the vocabulary recall test a variation of vocabulary knowledge scale by Paribakht and Wesche (1996) was used. The experimental group outperformed the control group in both the post test and the delayed vocabulary recall test.