But are relatively independent of rank of institution (some would say inversely correlated).
I went to a mediocre state school (definitely not in top 100), and a top 3 grad school. By and large, the mediocre school's professors cared more about teaching and put more effort into it.
This is well known in education, that level of instruction is inversely correlated with time spent on pedagogy, and positively correlated with time spent on content. In other words, kindergarten teachers think a lot about how to teach, while professors think about what to teach. The quality of instruction would probably be worse at a research university than at a college focused mainly on undergraduate education.
But are relatively independent of rank of institution (some would say inversely correlated).
I went to a mediocre state school (definitely not in top 100), and a top 3 grad school. By and large, the mediocre school's professors cared more about teaching and put more effort into it.