I've heard this as a reason why HBCU's are so great. Basically a lot of African American's come from schools that don't prepare them as well for science and mat

I've heard this as a reason why HBCU's are so great. Basically a lot of African American's come from schools that don't prepare them as well for science and math as their peers who went to more expensive elite schools. They have to work twice as hard because they're playing catch up and thus many transfer out of math/science/pre-chem and into less rigorous subjects. This is one theory as to why HBCU's do such a better job at preparing the next generation of black scientists, engineers, doctors, and lawyers then other comparable schools.