A Conceptual Model Becomes a Theoretical Model When

question 46

Multiple Choice

A conceptual model becomes a theoretical model when:

• A) a full-scale study is likely to cost more than an exploratory study.
• B) a literature review and the available secondary data are inadequate to suggest strong candidates for explaining dependent variables of interest.
• C) a literature review or an exploratory research is sufficient to support the model's pictured relationships between variables.
• D) the dependent variables identified in the model are constructs.
• E) the independent variables identified in the model are constructs.

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Definitions:

FMVSS-121

The Federal Motor Vehicle Safety Standard addressing air brake systems in heavy-duty vehicles to ensure safety through performance requirements.

Service Brake Circuit

The network of components, including lines, valves, and actuators, that allows a vehicle to decelerate or stop by hydraulic or mechanical means.

Charged with Air

Typically refers to pneumatic systems or equipment that has been pressurized with air for operation or use.

Trolley Valve

A valve used in air brake systems on trucks and trailers, allowing the driver to control the trailer brakes independently.