For less challenging toddlers, who made up 35% of the children he saw, punishments and warnings backfired: they worked immediately, but at the two-month check-in, they had increased the child's behaviour problems. And on average, for the remaining majority of children in the middle – 53% of the total – infrequent timeouts had no effect on later behaviour, positive or negative.
อ่านต่อได้ที่ : โรงเรียนวัดหนองตาหลวง
สาระน่ารู้ : สิวหัวดำ