These mostly track admission selectivity and a few other factors that relate more to the student characteristics (e.g. whether the student can afford the school) than the treatment effect of the school; a given student’s personal academic qualifications and other characteristics is likely much more predictive of his/her chance of graduating on time than the rates associated with his/her school. However, if a school has unusually higher or lower rates here than would be expected based on its students, that may be worth investigation.