All of the Following Are Examples of an Observation Study

question 21

Multiple Choice

All of the following are examples of an observation study EXCEPT _____.

• A) a mystery shopper pretending to be a customer in a McDonald's outlet
• B) a cable laid across the street that records the number of cars that pass a certain intersection
• C) determining how long employees spend taking breaks to smoke cigarettes
• D) a consumer responding to a questionnaire about advertising

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Definitions:

Fast-Twitch Fibers

Muscle fibers that contract quickly and are used for short bursts of speed and power, but fatigue more rapidly than slow-twitch fibers.

Skeletal System

The framework of bones and cartilages that supports the body, protects internal organs, and facilitates movement.

Photoreceptors

Specialized cells found in the retina of the eye that convert light into electrical signals, facilitating vision.

Retina

A layer at the back of the eyeball containing cells that are sensitive to light and that trigger nerve impulses that pass via the optic nerve to the brain, where a visual image is formed.