Shahin Abassy Delvand - Department of English, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
Davood Mashhadi Heidar - Department of English, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran

Abstract The present research was conducted to compare the efficiency of ۳ groups of ESP instructors: content teachers, language teachers, and professional ESP teachers. The main question was aimed to investigate whether there was a significant difference between the ۳ mentioned groups of ESP teachers and if there was, who was more qualified to teach ESP. To find the answer, a questionnaire was developed by the researchers, with an acceptable reliability and validity. The questionnaire was distributed to ۱۳۵ students in several universities. The obtained results revealed that there was a significant difference between the ۳ groups of teachers. Content teachers gained the least score, while language teachers and professional ESP teachers were located in the same subset and gained the highest score. It was concluded that language instructors and professional ESP teachers were more qualified to teach ESP.

ESP, EAP, evaluation, content teachers, language teachers, professional ESP teachers