If a Researcher Finds a Negative Correlation Between the Number

question 96

Multiple Choice

If a researcher finds a negative correlation between the number of hours that students play computer games and grades, this means that

• A)computer game playing causes a decrease in grades.
• B)computer game playing causes an increase in grades.
• C)lower grades cause a student to be disinterested in studying and more interested in playing computer games.
• D)an experiment would have to be performed to establish a cause-and-effect relationship between video game playing and grades.

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Definitions:

Major Calyces

The large passageways in the kidney that collect urine from the minor calyces and funnel it into the renal pelvis.

Cortical Tissue

Brain tissue found in the cortex that is involved in processing sensory information, thinking, and consciousness.

Pyramids

Structures located in the medulla oblongata of the brain, involved in the transmission of motor signals to the spinal cord.

Renal Columns

Structures in the kidney that consist of lines of blood vessels and urinary tubes and serve as a support for the cortex.