Are teens who are more depressed spending more time on their phones? Or are teens becoming depressed because they spend more time on their phones?
nutrition research, another famously messy field of scienc
much so that memory-based diet research may be “fundamentally and fatally flawed,”
Sometimes the question is refined to “how many hours a day do you spend on social media?” Or “how many hours a day do you spend playing video games?
found only about a third of people are accurate self-reporters.