Following are additional resources to consider for the general topic of comparing on-campus vs. off-campus living. For the specific campus of ERAU, sources will incorporate surveys and interviews.
Personal Interviews are definitely a good idea for this topic; must students have strong opinions when it comes to the dorms. Be sure to interview students of every year (freshman-seniors) to avoid bias
http://www.assessment.uci.edu/undergraduate/documents/Commuterreport-03.06.07final.pdf
http://www.collegiatetimes.com/stories/18458/off-campus-living-has-positive-and-negative-aspects
http://nsse.iub.edu/pdf/commuter.pdf