The more often matthew is scolded following a temper tantrum, the more frequently he loses his temper. in this case, the scolding serves as a for matthew's temper tantrums.

Positive reinforcer

Explanation:

When a stimulus is followed by a behavior and if the behavior is reinforced then the type of reinforcer used is positive reinforcer. The likely hood of repeating the behavior is increased because of the reinforcer. These are the concepts of operant conditioning.

Here, scolding Mathew results in him losing his temper more.

Hence, the scolding serves as a positive reinforcer.

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i hope this