Richard Arum, Meet Branford Marsalis

Here's a nice example of lived experience and social scientific research reaching the same conclusions.  Richard Arum's written a book called Academically Adrift, with Josipa Roksa, about how students today aren't learning much of anything.

Branford Marsalis evidently didn't need to read this book to know the same thing, as he explains in this 2006 interview:

Here's the full documentary, Before The Music Dies: