Jacques Is Interested in Finding Out If Caffeine Affects Levels

question 35

Multiple Choice

Jacques is interested in finding out if caffeine affects levels of task performance for introverts and extraverts. From which research method would Jacques benefit the most?

• A)Case study
• B)Naturalistic observation
• C)Correlational design
• D)Experimental design

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Definitions:

Positive Correlation

A relationship between two variables where an increase in one variable is associated with an increase in the other.

Negative Correlation

Negative Correlation refers to a relationship between two variables where one variable increases as the other decreases, and vice versa.

Null Relationship

indicates a situation where no association is found between two variables being studied.

Internal Reliability

When all of the items on a questionnaire measure the same thing.