Holding a Variable Constant Prevents a Participant Characteristic from Becoming

question 38

Multiple Choice

Holding a variable constant prevents a participant characteristic from becoming a confound by ____.

• A)​eliminating variability in that characteristic
• B)​reducing error
• C)ensuring a nonbiased sample
• D)​increasing the differences between the groups

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Definitions:

Suspension Noises

Sounds emanating from a vehicle’s suspension system, indicating potential issues with components such as shock absorbers, springs, or bushings.

Clunking

A noise or series of noises that may be heard coming from a vehicle's suspension or drivetrain, indicative of loose or worn parts that require attention.

Creaking

A sharp, harsh, squeaking sound made by something under pressure, often due to movement or weight.

Knocking

A problem in internal combustion engines caused by the fuel-air mixture igniting prematurely in the cylinder, leading to a sharp and often loud noise, which can damage the engine.