It was based upon talking with the people that ran the place, discussing with parents why they put them in the place (all were high achievement academic reasons

It was based upon talking with the people that ran the place, discussing with parents why they put them in the place (all were high achievement academic reasons), and discussing these issues with my mother in law, who was an early child development college teacher for 20 years and ran a preschool lab where they taught their college students, hands on, how to be preschool teachers.