Peer Pressure
In the summer of 2000, a Dartmouth economist named Bruce Sacerdote published a paper titled Peer Effects in Randomly Assigned Roommates. His premise was interesting: Incoming students at Dartmouth are assigned to rooms at random. He knew, therefore, that when two roommates first arrive on campus, their behavior should have no more in common than any other pair of students.
Sacerdote’s insight was to wait until the end of the year and then look for traits that roommates had become more likely to share than random pairs. The idea was that these shared traits would be due to the roommates’ influence on each others’ behavior.
Sacerdote found that for some behaviors, such as major choice, roommates didn’t affect each other. But for one trait in particular, GPA, they had a lot in common. He attributed this finding to a simple idea: students’ study habits are heavily influenced by their peers.
It’s important that you recognize this reality, because these peer influences shape more than you might imagine about your own habits. Like a pair of behavioral blinders, carefully slipped into place without you noticing, peer influence may have prevented you from seeing a variety of radical strategies that could greatly simplify your student life.
In this post, I want to describe one such strategy…