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Efficacy vs Reliability - What's the difference?

efficacy | reliability |

As nouns the difference between efficacy and reliability

is that efficacy is ability to produce a desired amount of a desired effect while reliability is the quality of being reliable, dependable, or trustworthy.

efficacy

English

Noun

(-)
  • (uncountable) Ability to produce a desired amount of a desired effect.
  • Synonyms

    * efficacity

    reliability

    Noun

    (en-noun)
  • The quality of being reliable, dependable or trustworthy.
  • The quality of a measurement indicating the degree to which the measure is consistent, that is, repeated measurements would give the same result (See validity).
  • In engineering measurable time of work before failure