https://schooling-frontier.pages.dev/tags/early-intervention/ Recent content in Early Intervention on Schooling Frontier Hugo en Mon, 15 Jun 2026 00:00:00 +0900 https://schooling-frontier.pages.dev/posts/only-children-theory-of-mind-gap-closes-fast/ Mon, 15 Jun 2026 00:00:00 +0900 https://schooling-frontier.pages.dev/posts/only-children-theory-of-mind-gap-closes-fast/ A study of 109 children aged 3–6 in Wuhan, China found that only first-borns — not all children with siblings — outperformed only-children on theory of mind. And the only-child gap closed after just two weeks of a short language-based intervention, suggesting it was never a fixed limitation.