Conditioning!

When I was younger my parents would use operate conditioning. I would always want to play with my friends or toys after school instead of doing my homework. I soon learned that if I got my homework done right after school my parents would allow me to do what I wanted. They used  ratio, variable reinforcements. They wouldn't allow me to do things after school every day so it wasn't a fixed reinforcement. By only giving a reward once in awhile it created a habit for me to get my homework done right after school every day. They used a positive giving reward.