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Validity vs. Reliability — What's the Difference?

Validity vs. Reliability — What's the Difference?

Difference Between Validity and Reliability

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Compare with Definitions

Validity

Well grounded; just
A valid objection.

Reliability

Capable of being relied on; dependable
A reliable assistant.
A reliable car.

Validity

Producing the desired results; efficacious
Valid methods.

Reliability

Yielding the same or compatible results in different clinical experiments or statistical trials.

Validity

Having legal force; effective or binding
A valid title.
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Reliability

The quality of being reliable, dependable, or trustworthy.

Validity

Containing premises from which the conclusion may logically be derived
A valid argument.

Reliability

(education) the ability to measure the same thing consistently (of a measurement indicating the degree to which the measure is consistent); that is, repeated measurements would give the same result (See also validity).

Validity

Correctly inferred or deduced from a premise
A valid conclusion.

Reliability

(engineering) measurable time of work before failure

Validity

(Archaic) Of sound health; robust.

Reliability

The state or quality of being reliable; reliableness.

Validity

The state of being valid, authentic or genuine.

Reliability

The trait of being dependable or reliable

Validity

State of having legal force.

Validity

A quality of a measurement indicating the degree to which the measure reflects the underlying construct, that is, whether it measures what it purports to measure (see reliability).

Validity

The genuinity - as distinguished from the efficacity or the regularity - of a sacrament as a result of some formal dispositions being fulfilled.

Validity

The quality or state of being valid; strength; force; especially, power to convince; justness; soundness; as, the validity of an argument or proof; the validity of an objection.

Validity

Legal strength, force, or authority; that quality of a thing which renders it supportable in law, or equity; as, the validity of a will; the validity of a contract, claim, or title.

Validity

Value.

Validity

The quality of being logically valid

Validity

The quality of having legal force or effectiveness

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