Summary Toronto Hospital for Sick Children Study
"A major and statistically significant improvement in the children's behavior and a large drop in parental stress, depression and hostility."
People often ask if 1-2-3 Magic is supported by research of this kind. The answer is
Yes. Recently one of Toronto's biggest hospitals, the Hospital for Sick Children,
completed a large, controlled study which looked at 220 families in which the parents
were trained (using the 1-2-3 video) to use 1-2-3 Magic with their 3- and 4-year-old
children. The well-designed, randomized study was conducted in cooperation with ten
social service agencies around the Toronto area.