Final answer:
The behavior of yelling at a child for slouching represents positive punishment in operant conditioning, which involves adding an undesirable stimulus to decrease the behavior.
Step-by-step explanation:
The behavior described in the question is 'Yelling at her son for slouching in his chair.' This behavior falls under the concept of Operant Conditioning, which involves using reinforcement or punishment to modify behavior. In this specific example, the mother is administering an undesirable stimulus (yelling) to decrease the behavior of slouching.
This is an example of positive punishment, where a stimulus is added to decrease a behavior. It's important to understand that in operant conditioning, 'positive' refers to adding something, while 'negative' refers to removing something.
Reinforcement is aimed to increase behavior, whereas punishment is aimed to decrease behavior. Furthermore, the effectiveness of such strategies should be weighed carefully, as psychologists recommend the use of reinforcement over punishment to promote positive behavior change.