| More panic about kids and screen time. A widely covered study published last week purportedly showed more dangers from letting very young children be exposed to screens—TVs, phones, etc.—in any capacity. “Age 1 is too young for any amount of screen time,” Fast Company reported of the findings. “‘iPad kids,’ or babies and young children who have access to more screen time have a higher likelihood of developmental delays,” reported Fox News.
Once again, the actual findings behind the headlines are rather mundane.
The study, published in JAMA Pediatrics, found that one-year-olds exposed to more screen time had “a higher risk of developmental delay at age 2 years in the communication, fine motor, problem-solving, and personal and social skills domains.” By age four, delays in fine motor, personal, and social skills had disappeared but children with more screen time were still at higher risk for communication and problem-solving deficits. “In particular, more than 4 hours of screen time per day was associated with developmental delays in communication and problem-solving across ages 2 and 4 years,” the researchers say.
It doesn’t take special training to see some problems with using this study to draw major conclusions about kids and screen time in general, or using it to demonize any and all screen exposure for very young children. For one thing, the effects may not be so much about the detrimental effects of TV or the internet but the fact that more time spent doing that means less time for other developmentally enriching activities. A young kid who spent four hours per day on any one activity to the exclusion of others may experience delays in certain cognitive or physical domains.
The bigger problem is that families who let very young children spend a lot of time in front of screens tend to differ in a lot of other ways from those who do not. And indeed, “mothers of children with high levels of screen time were characterized as being younger…and having a lower household income, lower maternal education level, and having postpartum depression” than mothers of children with less screen time. There were also differences in number of siblings and presence of a grandparent.
The researchers attempted to control for some of these differences, but “we should continue to worry that there are significant other unobserved differences,” economist Emily Oster points out. She concludes: |