How much do students learn in college?

Excerpts from an AP article in today's StarTribune:

A study of more than 2,300 undergraduates found 45 percent of students show no significant improvement in the key measures of critical thinking, complex reasoning and writing by the end of their sophomore years.

Not much is asked of students, either. Half did not take a single course requiring 20 pages of writing during their prior semester, and one-third did not take a single course requiring even 40 pages of reading per week.

The findings are in a new book, "Academically Adrift: Limited Learning on College Campuses," by sociologists Richard Arum of New York University and Josipa Roksa of the University of Virginia...

The book is based on information from 24 schools, meant to be a representative sample, that provided Collegiate Learning Assessment data on students who took the standardized test in their first semester in fall 2005 and at the end of their sophomore years in spring 2007. The schools took part on the condition that their institutions not be identified.

More at the link, and elsewhere on the web (this is being discussed in a variety of forums and news outlets this week).