A Common Objective for Many School Administrators Is to Increase $r =$

question 25

Essay

A common objective for many school administrators is to increase the number of students
taking SAT and ACT tests from their school. The data from each state from 2003 are
reflected in the scatterplot.
a. Write a few sentences describing the association.
b. Estimate the correlation. $r =$ __________
c. If the point in the top left corner (4, 1215) were removed, would the correlation become
stronger, weaker, or remain about the same? Explain briefly.
d. If the point in the very middle (38, 1049) were removed, would the correlation become
stronger, weaker, or remain about the same? Explain briefly.

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Definitions:

Amygdala

The amygdala is a brain structure involved in emotion regulation, emotional learning, and the formation of fear-related memories.

Hierarchy of Needs

A theoretical framework in psychology proposed by Abraham Maslow, identifying different levels of human needs, from basic physical requirements to complex psychological growth, which motivate individual behavior.

Arousal Theory

Arousal Theory suggests that individuals are motivated to maintain an optimal level of arousal, with variations in this level driving behaviors towards achieving such balance.

Drive-reduction

A psychological theory that motivation arises from the need to reduce internal drives such as hunger or thirst.