THE EFFECT OF THE NUMBER OF AFFIXES ON VOCABULARY LEARNING OF IRANIAN ADVANCED EFL STUDENTS

This study examines the relationship between the number of affixes and vocabulary learning of Iranian advanced EFL (English as foreign language) students. In order to carry out the investigation, 43 (male and female) advanced students in Qazvin Province in Iran were chosen randomly, and then the initial number of students was reduced to 37 after the administration of proficiency pre-test. The data were collected using two separate tests. One of the tests was a proficiency test and the other was a vocabulary recognition test. Students were given information about paying attention to the word parts when answering the questions. One-way Repeated Measure ANOVA was used to analyze the data. The results showed that advanced students who used word formation strategy were aware of it and used that strategy in their test. Then, by using word formation instruction in general and affixation in particular teachers can create a creative situation for teaching and keep learners interested and motivated for learning vocabulary.