Content analysis involves looking at media materials, basically print media but also books, diaries, etc. In the case of Bowdoin as a total institution, this might involve looking for and analyzing records on decision-making, student involvement, rules and regulations, etc. Where you would find such records is problematic. This may not seem like an especially fruitful path at first, but a resourceful student might well find some interesting information to analyze. This might give you the chance to analyze the college's public stated position on its goals and procedures.
Interviews seem like a good bet for collecting relevant information beyond the survey.