Herrnstein's Matching Law (concurrent schedules of reinforcement) has tremendous implications for using reinforcement-based behavior change methods in applied environments. Assume you have implemented a behavior change procedure in an applied environment (home, clinic, or classroom) using a token economy. Regarding the potency of your reinforcers, what must be considered if your plan is not working, and what is at least one change you could implement to make it work? 

Token economy is common behavioral modification in the classroom setting, for kids in particular. The common problem that might encounter if they are no longer participating is that

1)Probably they doesnt care about earning tokens anymore

2)They feel that it is too hard to earn that token that is why they are losing the motivation to do the task

3)The child gets very upset when he or she doesnt earn tokens.

These are some of the plan of action in case these will might encounter in token economy:

If the child doesnt care about earning tokens anymore, probably the tokens you put is not his or her interest, you may assess what he or she wants and make it as your reward or token.

Also, you may keep some simple rewards on the menu that only require a couple of tokens and remember that rewards don't have to cost money.

Lastly, if the child misbehavior like whines or begs, ignore him dont engage in the power struggle about earning tokens since that is the very objective why you have token economy to modify his or her behavior.