Honestly-- that is where I'd encourage parents and prospective students alike to look hardest when choosing colleges. Look past the lazy river and climbing wall-- to what percentage of undergraduate courses are taught by adjunct faculty.
In a previous thread I mentioned research finding that adjuncts teach as well as professors:
http://giftedissues.davidsongifted....college_acceptance_rates.html#Post199871 . If job security were the key to good teaching, the quality of teaching in our public schools would be uniformly high, but it is not.
I would want to know how much adjuncts are being paid. If they can make a decent living teaching 2-3 courses per semester, they may do a better job than if they need to teach 6.
