What Does It Mean That "Reliability Is Necessary but Not

question 46

Multiple Choice

What does it mean that "reliability is necessary but not sufficient for validity"?

• A)If a measure is reliable, it is also valid.
• B)If a measure is valid, it is also reliable.
• C)Reliability and validity are unrelated concepts.
• D)Reliability and validity are the same concept.

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Definitions:

EMI

Electromagnetic Interference, disturbances that affect an electrical circuit due to electromagnetic induction or radiation emitted from an external source.

Line Voltage Variations

Fluctuations in the electrical power supply voltage that can affect the performance of electrical devices.