An Investigation into the Relationship between Personality Traits and Iranian EFL Learners Performance on C-Test

The purpose of the study was twofold: (a) to examine the relationship between Iranian English-as-a-foreign language (EFL) learners performance on C-test and their personality traits measured by Myers Briggs Type Indicator, form M (MBTI-M) and (b) to find if any of the personality traits could predict language learners performance on C-test. To achieve these two goals, 283 conveniently selected Iranian language learners took a C-test and a Michigan Test of English Language Proficiency (MTELP), and filled an MBTI-M questionnaire. The results of Pearson correlations showed that Introversion and Thinking were positively correlated with performance on C-test, but Extraversion and Feeling were negatively correlated with language learners performance on this test. Moreover, the results from the standard multiple regression showed that the strongest personality trait for predicting language learners performance on C-test was Introversion. The findings may carry implications for language learners, language teachers, and language testers.