An Instructor Finds That, in General, the More Time Students

question 25

Multiple Choice

An instructor finds that, in general, the more time students spend on laptop computers during class, the less often students take notes. Which of the following correlations reflects this relationship?

• A) r = .50
• B) r = -.50
• C) r = 1.00
• D) r = -1.00

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Definitions:

Antibodies

Antibodies are protein molecules produced by the immune system in response to foreign substances, helping to fight off infections.

Periodontitis

A serious gum infection that damages the soft tissue and destroys the bone that supports teeth, possibly leading to tooth loss.

Atherosclerosis

Cardiovascular disorder in which lipid-rich plaques form on the interior walls of blood vessels and narrow the vessels.

T Cell Receptors

Proteins found on the surface of T cells that allow these cells to recognize and bind to specific foreign antigens.