> There is a danger in overgeneralization from anecdotal evidence. There is, and there is likewise the danger of overgeneralizing from scientific studies. That

> There is a danger in overgeneralization from anecdotal evidence. There is, and there is likewise the danger of overgeneralizing from scientific studies. That is, even if the study has been conducted without error, we must correctly understand what the measurements used were, how they relate to observable phenomena, and what they entail. A study may make a very modest claim about something really quite specific, but it is easy to misinterpret the actual results and overinfer what they entail. Ergo, it may very well be the case that the OP has observed increased agitation with screen time, and this need not contradict the study, and vice versa. But we must always remember that what is observed takes precedence. If you observe a genuine correlation between screen time and misbehavior personally, it makes more sense to go with what you have observed rather than the study. To quote Chico Marx facetiously, "Who you gonna believe, me or your lying eyes?".