A Participant in an Experiment Is Told That a Particular

question 86

Multiple Choice

A participant in an experiment is told that a particular pill should improve her performance on a cognitive task.The participant is then given the pill,and she performs better than usual on the task.In actuality,the pill did not contain any ingredients that would affect her performance on the task.The participant's improved performance is most likely due to ____.

• A) the double-blind design
• B) random variables
• C) the placebo effect
• D) confirmation bias

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Definitions:

Mutualists

Organisms that engage in mutualism, a type of symbiotic relationship where both participants benefit from the interaction.

Mutualistic Relationship

An ecological interaction between two or more species where each benefits and derives a positive effect from the relationship.

Photosynthetic Organisms

Life forms that convert light energy into chemical energy via photosynthesis, producing oxygen and organic compounds from carbon dioxide and water.

Nonphotosynthetic Partners

Organisms that do not perform photosynthesis but are involved in symbiotic relationships with photosynthetic organisms, often exchanging nutrients.