In Experimental Studies Examining the Effectiveness of New Medications, Researchers

question 82

Multiple Choice

In experimental studies examining the effectiveness of new medications, researchers often administer a placebo (an inactive substance that should have no medical effect on the participant) . Giving a placebo to participants in the control condition increases:

• A) external validity.
• B) internal validity.
• C) independence.
• D) extraneous variables.

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Definitions:

Zygote

The initial cell formed when a sperm cell fertilizes an egg cell, which will develop into an embryo through cell division.

Dispersal

The movement of organisms from their birth site to other locations for breeding or living habitat.

Smooth Surfaces

Areas or aspects of objects that are evenly textured and free from noticeable bumps or indentations, often associated with items that have been polished or naturally lack irregularities.

Fleshy Fruits

A type of fruit with a thick, soft, edible part developed from the ovary of a flower, characteristic of tomatoes, apples, and berries.