In a Between-Subjects Experiment, When the Process of Assigning Participants

question 50

Multiple Choice

In a between-subjects experiment, when the process of assigning participants to the treatment conditions produces groups with different characteristics, the ____ of the study is threatened.

• A) internal validity
• B) external validity
• C) reliability
• D) accuracy

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Definitions:

Field Exciter

A device or circuit that provides the necessary DC current to the magnetic field winding of a generator or motor to initiate or enhance its operation.

Differential Setting

In protective relays, refers to the adjustment that determines the difference in current or voltage at which the device will operate to protect electrical equipment.

Compounding

Generally indicates the voltage increase caused by the series field as compared to the voltage drop of the generator.

Exciting

The process of supplying a magnetic field to a core or coil in electrical devices to induce a magnetic flux.