I believe the answer is: mathematics
Hull is known because he transform the factors that influenced human behaviors into a numerical value.
He later used this numerical value in order to objectively measures the combination of factors that most likely lead to a certain behavior.<span />
The answer to this question is Lewis Terman
Lewis Terman spent the majority of his career to develop the revision of Stanford-Binet IQ test in order to learn about intelligence development of Genius Kids. Up to this day, his Revision is still widely used as a standard measurement for IQ testing that used for children.
<span>Fernando's worrisome thoughts about a break-in are an obsession. The fact that Fernando checks the locks over and over is a compulsion. Obsession and compulsion are classic symptoms of Obsessive Compulsive Disorder. The obsession is described as a compulsive thought that the person can not stop or eliminate and that generates discomfort. <span>Compulsion is described as a behavior that the person is forced to do to decrease their anxiety and intrusive thinking.
I hope my answer can help you.
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They enhance our understanding of an area because they let you know what are the best routes to take and where everything is. Also is there are any dangerous things in that area.