How does italki calculate the rating score?
Ratings are calculated based upon 3 factors: the professionalism, knowledge, and helpfulness of the teacher as scored by the student. To reward teachers who have taught more sessions and received consistently high scores, we use a Bayesian Average in our calculations. In addition, we show an overall score, and the score for the past month and past 3 months to let the italki community see the rating trend.
