To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.
My school has begun work with branding what we do and I was hopeful this book would be more specific about the science behind it and have more concrete examples --- especially for large urban campuses. Maybe I expected too much.