A Pearson Correlation of R = −0

question 28

Multiple Choice

A Pearson correlation of r = −0.25 indicates that a graph of the data would show points ____.

• A) clustered close to a line that slopes up to the right
• B) clustered close to a line that slopes down to the right
• C) widely scattered around a line that slopes up to the right
• D) widely scattered around a line that slopes down to the right

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Definitions:

Trichromatic Theory

The theory that color vision is made possible by three types of cones, some of which respond to red light, some to green, and some to blue.

Active Touching

The process of using one’s own touch or motion to explore objects and environment, playing a critical role in sensory perception.

Thalamus

A structure within the brain that acts as a relay station for incoming sensory information, directing it to the appropriate areas in the cortex for processing.