I don't know how long it can take but I would suggest adding to the amount of times he has to respond before he gets the reward. For example, hold the chip and request the task, once he has preformed the task ask him to "do it again?" then if or when he does he gets the reward. Slowly increase the amount of times you ask him to repeat the task so it will then become a habit. You might try including a verbal or physical praise before the "treat". So the first time he completes the task, verbally praise him - "That was so good"/ "You did great" - then ask him to repeat it and give him the treat. The next time you increase add a kiss, hug, or pat to the request for him to repeat task before he gets the "treat". eventually you want to give more verbal and/or physical rewards than "treat" rewards.

I hope this helps.

Overtime he will recieve less and less reword say she does it 19 times o.e of thsoe ten time he will not get one he will eventually get to where he has none all of those ten times its a reputition thing y aba takes so long. They will start to praise him more then giv him a treat. I fig ad long as he is doing what is asked, and not kicking.or hitting then he is doing good

My daughters therapists use the reward system but she does not get the reward every time. They are also using her for two case studies because she is highly motivated by the rewards which are her snack foods. I know right from the start they only gave out the reward every time for a short period of time and then they mixed it up.

Sometimes it the child's ability and sometimes it is the skill of the therapist, but I will agree it does take time and every child is different