Building on previous studies on the effectiveness of different types of written corrective feedback, the present study aimed at investigating whether direct focused corrective feedback and direct unfocused corrective feedback produced any differential effects on the accurate use of English articles by EFL learners across two different proficiency levels (low and high). In current study, the participants were divided into low and high proficiency levels by administering a TOEFL test. This led to formation of two proficiency levels, 60 participants in each level, totaling 120 participants....