If a Researcher Is Not Sure Whether Their Intervention Caused

question 29

Multiple Choice

If a researcher is not sure whether their intervention caused any change in the dependent variable, why is this a problem?

• A) The research must be flawed.
• B) It fails to establish internal validity.
• C) The researcher is bad at their job.
• D) Someone mixed up the research results and this costs money to fix.

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Definitions:

Vacuum Power Booster

A device used in automotive brake systems that uses vacuum pressure from the engine to amplify the driver's pedal force, reducing the effort needed to brake.

Firewall

A part of a vehicle's body or a computer system designed to block unauthorized access while allowing authorized communications.

Steering Angle Sensor

A sensor that measures the angle of the steering wheel and the rate at which it is turned, providing vital data for vehicle stability and steering systems.

Lateral-Acceleration Sensor

A sensor that detects the side-to-side acceleration of a vehicle, often used in stability control systems.