A psychologist.
The root word they both share is psych. By adding ology on the end it will be the study of, which is the word above. To find someone who studies it, we would simply add ologist after the root word, because ologist means someone who studies.
Answer:
Germany’s work force has a valuable human capital.
Explanation:
i did a test with this question.
D. There were middlemen for them, as trading was quite common between the groups.
The mother's behavior was being <u>negatively reinforced </u>by the end of the <u>tantrum.</u>
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<h3>
What is negative reinforcement?</h3>
Negative reinforcement can be defined as way of stopping or eliminating unpleasant behavior so as to encourage pleasant behavior by making use of reinforcer.
Based on the given scenario by giving Ariel the candy after Ariel threw a tantrum over it we can say that the mother is making use of negatively reinforced by the end of the tantrum on Ariel.
Inconclusion the mother's behavior was being <u>negatively reinforced </u>by the end of the <u>tantrum.</u>
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Learn more about Negative reinforcement here:brainly.com/question/17751923