In a Study on the Effects of Caffeine on Memory

question 128

Multiple Choice

In a study on the effects of caffeine on memory, Dr. Levine asked participants to drink a bottle of unflavored water containing 100, 50, or 0 milligrams of caffeine. Neither Dr. Levine nor the study participants knew whether the water contained caffeine or not. This is an example of a _____ study.

• A)correlational
• B)case
• C)single-blind
• D)double-blind

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Definitions:

Establish Credibility

The process of proving oneself to be reliable, trustworthy, and competent in a particular field or subject matter.

Public Speaking

The art of effectively communicating to an audience through speech, often for the purpose of informing, persuading, or entertaining.

Apprehensive

Feeling anxious or fearful that something bad or unpleasant will happen.

Main Points

The primary or most important ideas, facts, or arguments presented in a discussion or text.