Mary's parents are trying to decrease the number of times that she feeds the family dog during the day. Mary's parents set a criterion level for the maximum number of times that she can feed the dog in a day, and if Mary achieves this level she gets a story read to her at bedtime. Which type of differential reinforcement are Mary's parents using?
a. DRO
b. DRA
c. DRL
d. DRC

option C:  DRL

Explanation:

Differential Reinforcement can be defined simply as putting into use a  reinforcing, only when  the  right or appropriate  behavior that an individual want to increase thereby  using elimination to responses of any other.

Differential Reinforcement of Lesser Rates of Behavior (DRL) – is a type of differential reinforcement that deals with the reinforcement usually quite some time  where  the behavior shown by a the child exhibits the behavior at a predetermined small rate of occurrence. this method seeks to  Reduce Behaviors  not needed urgently or quickly using Differential Reinforcement of Low Rates of Behavior. it is a method of intervention strategy in the sense that a reinforcer is only  given when the behavior or response to a particular behavior did occurs at a small or low  rate than  it was before, thereby decreasing or reducing the rate of occurrence of the negative or inappropriate behavior or response.

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