Dr. Paul is curious whether a tendency toward aggression changes with age. He gathers a group of 5-year-old children and administers a test to assess their aggressive tendencies. He then retests the children when they are 10 years old and again when they are 15 years old. This type of research is known as _____.

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The Answer of Dr. Paul is curious whether a tendency toward aggression changes with age. He gathers a group of 5-year-old children and administers a test to assess their aggressive tendencies. He then retests the children when they are 10 years old and again when they are 15 years old. This type of research is known as _____.

Dr Paul Is Curious Whether a Tendency Toward Aggression Changes