Laptop use and student achievement study

Laptop use in the classroom may be a distraction for some students, according to a study from economists at West Point. Data show students with the highest ACT scores and grade point averages who used laptops in class scored lower than peers who did not have access to the technology. In contrast, there wasn’t much of a difference between students with low ACT scores — those who were allowed to use laptops did just as well as those who couldn’t. 
Carter, S., Greenberg, K., & Walker, M. (2016).  The impact of computer usage on academic performance. Cambridge, MA: MIT.
https://seii.mit.edu/research/study/the-impact-of-computer-usage-on-academic-performance-evidence-from-a-randomized-trial-at-the-united-states-military-academy/