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Efficacy Meaning and Definition in Dictionary

Definitions from Wordnet 2.0

  • capacity or power to produce a desired effect; "concern about the safety and efficacy of the vaccine"

Definitions from Wiktionary

  • capacity or power to produce a desired effect; "concern about the safety and efficacy of the vaccine"

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Wikipedia Meaning and Definition on 'Efficacy'

  • Efficacy: Not to be confused with Efficiency. Efficacy is the capacity for beneficial change (or therapeutic effect) of a given intervention, most commonly used
  • Luminous efficacy: Luminous efficacy is a measure of how well a light source produces visible light. It is the ratio of luminous flux to power. Depending on context, the
  • Self-efficacy: Self-efficacy is the extent or strength of one's belief in one's own ability to complete tasks and reach goals. Psychologists have studied self-efficacy from
  • Technological self-efficacy: Technological self-efficacy (TSE) is “the belief in one’s ability to successfully perform a technologically sophisticated new task”. This is a specific
  • Collective efficacy: In the sociology of crime, the term collective efficacy refers to the ability of members of a community to control the behavior of individuals and groups
  • Self-Efficacy (book): Self-Efficacy: The Exercise of Control is a book on scientific psychology written by Albert Bandura. The book was originally published in the United States
  • Drug Efficacy Study Implementation: Drug Efficacy Study Implementation (DESI) was a program begun by the Food and Drug Administration (FDA) in the 1960s after the requirement (in the Kefauver-Harris
  • Vaccine efficacy: Vaccine efficacy is the percentage reduction of disease in a vaccinated group of people compared to an unvaccinated group, using the most favorable conditions

'Efficacy' example sentence in quotations

* The metaphor is perhaps one of man's most fruitful potentialities. Its efficacy verges on magic, and it seems a tool for creation which God forgot inside one of His creatures when He made him. - Jose Ortega y Gasset

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Efficacy Sample Sentences in News

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