According to the Arcidiacono study, weaker students switch from hard programs to easy programs to protect the GPA, and hooked students are more likely to do so than non-hooked students. He found the natural sciences, engineering, and economics “more difficult, associated with higher study times, and are more harshly graded than their humanities and social science counterparts”.
The strategy is explained nicely here:
http://www.outsidethebeltway.com/why-more-americans-dont-major-in-the-math-and-science/
Anyone find this gaming disturbing, as I do?