A Scientist Performs a Controlled Experiment

question 20

Multiple Choice

A scientist performs a controlled experiment. This means that

• A) the experiment is repeated many times to ensure that the results are accurate.
• B) the experiment proceeds at a slow pace to guarantee that the scientist can carefully observe all reactions and process all experimental data.
• C) two versions of the experiment are conducted, one differing from the other by only a single variable.
• D) one experiment is performed, but the scientist controls the variables.

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Definitions:

Three-Dimensional

Refers to objects or images that have depth, height, and width, giving them a sense of fullness and spatial presence.

Community Psychologists

Professionals who apply psychological principles and approaches to work with communities to address social issues and improve quality of life.

Psychopharmacologists

Specialists who study the effects of drugs on the mind and behavior, often involved in developing or testing psychiatric medications.

Cognitive Psychologists

Scientists who study mental processes such as perception, memory, thought, and problem-solving to understand how the mind works.