Why Is It Essential That the Experimental and Control Groups

question 3

Multiple Choice

Why is it essential that the experimental and control groups be treated identically in every respect but one?

• A)so that the dependent variable can be accurately measured
• B)so that the results will apply outside the laboratory setting
• C)so that if the behaviour of the two groups differs,the difference can be credited to the one thing that distinguished the groups from one another
• D)so that if the behaviour of the two groups differs,that difference can be used to establish a functional relationship between the independent and dependent variables

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Definitions:

Reactive Power

Also called wattless power. Calculated by multiplying reactive voltage by reactive current. Can be produced by inductive or capacitive loads.

Inductive Reactance

The opposition an inductor provides to alternating current, directly proportional to the frequency of the current.

Pure Inductive

Refers to a circuit element or circuit that purely has inductance without any resistance, ideally opposing changes in current by generating a magnetic field.

Current

The rate of flow of electrons.