2 abril 2015
About a quarter of high performing students who began pursuing a bachelor’s degree between 2003 and 2009 declared a science, technology, engineering or math (STEM) major; however, nearly a third of these students had transferred out of STEM fields by spring 2009, according to a study.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1qQyIVUCPAw/150402114657.htm
