I had an opportunity to work on a project to uncover insights about reviews on ratemyprofessors.com. Apparently over 4 millions of students use the rating system for class selection every year. Most of us may already know final rating is just the average of all students. However, few understand what truly go into and drive the ratings. In addition to that, reviews can be highly inconsistent from student to student. A rating of 5 from student A can mean differently to student B. Ratings can easily skew toward either positive and negative end of spectrum as well. Just think about your personal experience. Do you tend to remember more about most satisfied or miserable experience, but remember less about average experience?