Scenario Yawning Is a Reflexive Action That Is Often Associated with with Sleepiness

question 53

Multiple Choice

Scenario
Yawning is a reflexive action that is often associated with sleepiness. When a person yawns, the mouth opens, and a longer than normal breath of air is inhaled, followed by a longer than normal exhalation. Hypothesizing that yawning has a regulatory mechanism similar to breathing, scientists conducted an experiment on college students to test the effect of existing carbon dioxide levels on yawning.
-What finding would be considered support for the hypothesis tested by the scientists?

• A)College students produce more carbon dioxide when they yawn more frequently.
• B)College students yawn with the same frequency regardless of carbon dioxide levels.
• C)College students yawn more when they are in lecture, compared to when they are in lab.
• D)College students yawn more when they are exposed to higher levels of carbon dioxide.

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Definitions:

Business Analysis

The practice of identifying business needs and determining solutions to business problems, often involving the assessment of business models or processes.

Prototype Testing

The process of evaluating the preliminary version of a product under conditions that simulate real-world use, to identify improvements before mass production.

Conjoint Analysis

A statistical technique in market research to determine how consumers value different attributes that make up a product or service.