Presently, the Manufacturers of Nutritional Supplements Are Not Required to Obtain

question 21

Multiple Choice

Presently, the manufacturers of nutritional supplements are not required to obtain approval from the U.S. Food and Drug Administration (FDA) to verify the claims of the effectiveness of the health products they sell. Suppose a company wants to market a new herbal supplement which it claims improves memory. A scientifically informed citizen would hope that someday the FDA would insist that before it approves such a product, research on the effectiveness of the supplement would:

• A) be quasi-experimental.
• B) compare it to people already taking a supplement.
• C) compare it to a placebo treatment.
• D) be conducted on young people who are most likely to use it.

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Definitions:

Colorblindness

A visual impairment in which an individual has difficulty distinguishing between certain colors, usually between red and green, due to absent or defective color-sensitive cells in the eyes.

Perceptual Constancy

The brain's ability to recognize objects as constant and unchanging despite changes in sensory input such as lighting, distance, or angle.

Linear Perspective

A depth cue in visual perception where parallel lines appear to converge in the distance, helping to create an illusion of depth in a two-dimensional image.

Sound Waves

Vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear.