Scientists at the University of Minnesota did a study in which they could predict with 77 percent accuracy, at age 18 months, who was going to graduate from high school, based on who had good attachment with mom.
ミネソタ大学の研究によると 月齢18ヶ月の段階で 母子の絆をベースにして どの子が高校を卒業できるかが 77%の確率で予測できるそうです