Why Do Researchers Use Random Assignment in an Experiment

question 41

Multiple Choice

Why do researchers use random assignment in an experiment?

• A) to provide ethical reasons for being in an experiment
• B) to prevent subjects from knowing which experimental group they are a member of
• C) to cause a selection factor to determine how the subjects will behave in the experiment
• D) to ensure that no pre-existing differences among groups cause the change in the experimental group's behaviour

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Definitions:

Manufacturing Overhead

The indirect costs associated with manufacturing that are not directly tied to the production of goods, such as utilities, rent, and maintenance of equipment.

Cost of Goods Sold

An accounting term referring to the direct costs attributable to the production of the goods sold by a company, including materials and labor.

Balance Sheet

A financial statement that reports a company's assets, liabilities, and shareholders' equity at a specific point in time.

Spreadsheet

A digital document comprised of rows and columns, used to organize, calculate, and manage data, commonly through software like Microsoft Excel or Google Sheets.