A Scientist Wants to Determine Whether a New Chemical She

question 3

Multiple Choice

A scientist wants to determine whether a new chemical she isolated can cure a certain disease.To test her hypothesis that the new chemical cures the disease more effectively than current treatments, she infects mice with the disease and gives them the new chemical.She then assesses how many mice were cured of the disease.What is missing from her experimental design?

• A)She is not missing anything-her experimental design is adequate to test her hypothesis.
• B)She is missing a control group of mice that received a half dose of the new chemical.
• C)She is missing a control group of mice that did not receive the new chemical.

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Definitions:

Mental Set

A frame of mind involving an established way of thinking, which can sometimes inhibit the ability to solve new problems.

Hierarchies

A system of organization where entities are ranked one above the other based on their status or authority.

Cognitive Maps

Mental representations of physical locations, helping an individual to navigate and understand spatial environments.

Mental Sets

The tendency to approach situations in a certain way because previous methods have been successful; can sometimes inhibit problem-solving.