No its not. Read the authors book, igen. Crucial difference - kids are more depressed and lonely
What is the author's source? A paywalled summarizing study that analyzed data from other studies: http://psycnet.apa.org/doiLanding?doi=10.1037%2Femo0000403
- Was any primary research conducted? You'll have to pay $12 to find out.
sci-hub
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Decreases in Psychological Well-Being Among American
Adolescents After 2012 and Links to Screen Time During
the Rise of Smartphone Technology.
Twenge 2018
10.1037 / emo0000403
no suitable proxies foundYes it is. More is not "largely different", regardless of study rigor.