https://www.sciencedaily.com/releases/2020/09/200902152150.htm

Previous studies of children and adolescents have found links between use of electronic media -- such as television, computers, and videogames -- and obesity, poor sleep, and other physical health risks. Electronic media use is also associated with better access to information, tech skills, and social connection. However, comparatively less is known about links with academic performance.

To help clarify these links, Mundy and colleagues studied 1,239 8- to 9-year olds in Melbourne, Australia. They used a national achievement test data to measure the children's academic performance at baseline and again after two years. They also asked the children's parents to report on their kids' use of electronic media.