The power of praise in changing student behavior is that it both indicates teacher approval and informs the student about how the praised academic performance or behavior conforms to teacher expectations. Notably, praise plays a significant role in the rate and success of learning process in general, and in language learning classroom in particular. Accordingly, the present study sought to investigate the significant influence of praise on the growing trend of university students with different majors, namely, TEFL and linguistics. To this end, from the population of students majoring in English, at the Islamic Azad University, Isfahan, Iran, two classes of sophomore students were selected, each containing thirty participants. Subsequently, the experimental group was exposed to a wide variety of distinguishing instructor praise expressions throughout the entire term while the students in the control group were not praised and encouraged. The results of the t- test revealed that the group which was praised by the instructor during the term progressed substantially in comparison with the other group. Moreover, there appeared to be a positive correlation between instructor praise and learner progress. Evidently, the results of the present study may have practical implications for EFL teachers, materials developers, and syllable designers.
