How Many Participants Would Be Needed for a Matched-Subjects Design

question 12

Multiple Choice

How many participants would be needed for a matched-subjects design comparing three different treatment conditions with 20 scores in each treatment?

• A)20
• B)60
• C)120
• D)cannot answer without more information.

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Definitions:

Disc Brake Service

Maintenance and repair tasks related to the disc brake system of a vehicle, including pad replacement and rotor resurfacing.

Inside Vents

Air duct openings located within a vehicle's interior that facilitate the flow of heated or cooled air.

Machine-to Limit

Adjusting or configuring machinery or components to operate within specific, prescribed limits or tolerances for optimal performance or safety.

Discard Limit

The specified point of wear or damage at which a component or part is no longer considered safe or functional and must be replaced.