Research Aim: This research analyzes the impact of native vs. non-native English teachers on students’ test scores. It will find how teachers’ backgrounds help them teach more effectively. It will see an empirical relationship between teachers’ background and English test scores such as IELTS, TOFEL, etc. It will assess various methods used by native and non-native English teachers to improve students’ test results. Moreover, it will recommend ways through which tests can be increased drastically.