If a Researcher Created Two Groups by Assigning the First

question 103

Multiple Choice

If a researcher created two groups by assigning the first 30 people to the experimental group and the last 30 to the control group,the process would violate the principle of

• A) the directionality problem.
• B) confounds.
• C) random assignment.
• D) descriptive research.

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Definitions:

Treadle Valve

A dual-circuit service brake actuation valve that meters air from the primary and secondary service reservoirs to the service lines and brake chambers. Also known as a foot valve.

Permissable Leakage

The maximum amount of leakage allowed by regulation or specification, often referring to fluids or gas.

FMVSS 121

Federal Motor Vehicle Safety Standard 121, which specifies the requirements for air brake systems in heavy vehicles, ensuring safety and reliability.

Maximum Stopping Distance

The furthest distance a vehicle can travel from the point where brakes are fully applied to when it comes to a complete stop.