Janet scolds her daughter, kelley, each time kelley pinches her little brother. after two weeks, janet notices that kelley has stopped pinching her little brother. in this scenario, scolding kelley is an example of in operant conditioning.
a) positive reinforcement
b) negative reinforcement
c) negative punishment
d) positive punishment

(D) Positive punishment

Explanation:

 The main goal of the positive punishment is that it changes the behavior of the individual person and it results into some positive output and response.

The positive punishment is one of the effective way for realizing the mistake of an individual person and it basically represent the unfavorable outcome or an event.

In the given question, the Janet scolds Kelley as she always pinches her brother and after scolding she stop doing. This scenarios is one of the example of positive punishment.  

Therefore, Option (D) is correct.

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answer; direct observation;