The impact of digital media on children’s intelligence while controlling for genetic differences in cognition and socioeconomic background - Scientific Reports

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TVゲーム時間が長い方が子供の知能が向上するという研究（N=9855）。遺伝要因や親の収入・学歴の影響を統計的に除外。9歳→11歳の追跡調査。