@payn4ward As a matter of fact, if one can stick to it for 5-9 years, more likely than not, one will get their phD. The requirements/challenges of different PhD programs are factored in admission selectivity. In other words, if you are admitted it’s assumed that you have the capability to eventually get the degree. At the minimum, the number/rates of graduates getting STEM phD is not a reliable measurement of undergraduate education for say top 100 colleges.