While I fully agree with you that there are fantastic games on screens (I'm playing HL Alyx at the moment), I was trying to present an alternative explanation f

While I fully agree with you that there are fantastic games on screens (I'm playing HL Alyx at the moment), I was trying to present an alternative explanation for the study. So we are taking about a game that is easy enough for kids to understand and play reliably. That might make the game used in the study too boring for adults, because they have played similar games in the past, while it is a new experience for the kids.