Technician a Says Excessive Buildup of Sludge May Indicate a Poor

question 28

Multiple Choice

Technician A says excessive buildup of sludge may indicate a poor oil change schedule. Technician B says a buildup of scale in the engine can cause cooling system blockage. Who is correct?

• A)A only
• B)B only
• C)both A and B
• D)neither A nor B

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Definitions:

Random Assignment

A procedure in experimental design that allocates participants randomly to either the control or experimental group, ensuring that each participant has an equal chance of being assigned to any group.

Experimental Research

Research designed to discover causal relationships between various factors.

Experimental Research

A systematic and scientific approach to research in which the researcher manipulates one or more variables to determine their effect on a certain outcome.

Causal Relationships

Connections between two events or variables where one directly affects the outcome of the other.