A study of data provided by 575 Australian mothers with a child between the ages of 2 and 5 indicated that outdoor play time was positively associated with cooperative and easy-going social skills along with expressiveness and directness, while screen time was inversely associated with the same social skills.
Hinkley T, Brown H, Carson V, Teychenne M (2018) Cross sectional associations of screen time and outdoor play with social skills in preschool children. PLoS ONE 13(4): e0193700. https://doi.org/10.1371/journal.pone.0193700
