 The children are kept there and when they are about 7–9 months old, they receive two and a half hour visit in the family's home to observe the mom, dad and baby.They continue to have visits when the child is 15–17 months, 36–38 months, and 46–48 months.The children were tested based on their individuality twice at 26–41 months and at 43–56 months repeatedly in multiple experimental situations as well as using parental reports.