This study investigates the role structural priming plays in production of passive structures among Iranian EFL learners. In order to answer the research question, which asked whether structural priming effects result in an increase in the production of the target structure (i.e., passive structures), 60 Iranian EFL learners participated in the study. After taking the placement test, they were divided into four experimental and control groups, namely Experimental High-Proficiency, Experimental Mid-Proficiency, Control High-Proficiency, and Control Mid-Proficiency. Participants then took part in picture description sessions the results of which were subjected to a 2 x 2 analysis of variance. The results of the experiment showed that priming resulted in increased production of the target structure in question by experimental groups as compared with production by control groups. In addition, the results indicated that EFL level of proficiency made a significant difference in production of the target structures. It is believed that structural priming can be employed as an alternative technique for presenting certain grammatical structures
