Fred's parents are very inconsistent with their child-rearing rules. most of the time, fred can climb on the furniture, but sometimes he can't. fred is sometimes allowed to stay up until he falls asleep on his own, but sometimes his parents will demand that he go to bed at an earlier time. fred frequently throws temper tantrums when he can't get his way, and his parents typically give in to his demands, although sometimes they don't. fred's parents can't understand why he isn't a better-behaved child. fred's parents are reinforcing his negative behaviors on a

Fred's parents are reinforcing his negative behaviors on a "partial reinforcement schedule".

In partial or intermittent reinforcement, the reaction is reinforced just piece of the time. Learned practices are procured all the more gradually with fractional support, yet the reaction is more impervious to eradication.  

While you at first utilized a consistent calendar, strengthening each and every occurrence of the conduct may not generally be practical. In the end, you may choose to change to a fractional calendar where you give support after such a large number of reactions happen or after so much time has passed.

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