“…Focusing on grade expectations in his study, Marsh (1987) grounds his opinion on correlation between grades and student evaluations in three hypotheses 1-the leniency hypothesis, which is related with teacher's leniency in grading, 2-the validity hypothesis, which is related with the amount of knowledge students have gained and the favoritism that they show, by giving high rates, and 3-the prior characteristic hypothesis, which is related with particular student or course factors such as motivation or class size. Other factors arising from student, such as cultural background, thinking style, learning style, high grade expectation, and nationality have also been found to be positively correlated with instructor ratings, although they are not directly related to the instructor (Boex, 2000;Germain & Scandura, 2005;Zhang, 2004;Worthington, 2002). Underlying the importance of nationality, Worthington (2002) claims that students from a non-English speaking background expect higher grades and tend to give higher ratings (Millea & Grimes, 2002).…”