It is called reputation ranking. T
- 25 % of the answers cam from North America
- In the survey, scholars are questioned at the level of their specific subject discipline. They are not asked to create a ranking or to list a large range of institutions, but to name no more than 15 of those they believe to be the best, based on their own experience.
Alone those two answers give a good explanation adn will explain why e.g. Imperial will be allways behin Oxford, just because of the range of subjects.