This study doesn't translate to the real world. I did a similar study in my second year of med school (unfortunately before I understood what an IRB is, so I couldn't publish the results), but of similar power. The findings were clear: of 25 study habits, taking long hand notes was the study habit with the strongest positive correlation with class standing. Use of a laptop to take notes in class had the strongest negative correlation. You were literally better off skipping class.