Buster Runs an Experiment in Which She Finds That Participants

question 41

Multiple Choice

Buster runs an experiment in which she finds that participants placed in a good mood by a happy film clip are more likely to offer help to a fellow participant than participants who see a sad film clip.Bob suggests that perhaps this difference simply results from the fact that the participants in the happy film clip condition were more helpful people______________to begin with.What methodological aspect of a successful experiment can Buster point to in order to refute this criticism?

• A)external validity
• B)random selection
• C)random assignment
• D)manipulation

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Definitions:

Expected Utility

A theory in economics that calculates the utility expected from different choices to assess risk and make decisions.

Income

The financial gain that an individual or business receives, usually from employment, business activities, or investments.

Utility Function

A mathematical representation of how a particular good or set of goods generates satisfaction or utility for an individual or consumer.

Flood

An overflow of water that submerges land which is usually dry.