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efficacy

[ˈɛfɪkəsi]

efficacy Definition

  • 1the ability to produce a desired or intended result
  • 2the power to bring about change or achieve a particular result

Using efficacy: Examples

Take a moment to familiarize yourself with how "efficacy" can be used in various situations through the following examples!

  • Example

    The efficacy of the new drug has not yet been proven.

  • Example

    The efficacy of the marketing campaign was impressive.

  • Example

    The efficacy of the vaccine is being closely monitored.

  • Example

    The efficacy of the treatment depends on the severity of the illness.

efficacy Synonyms and Antonyms

Phrases with efficacy

  • the belief that one's political participation can make a difference in government

    Example

    The decline in voter turnout suggests a lack of political efficacy among the electorate.

  • self-efficacy

    the belief in one's own ability to succeed in achieving a specific goal or outcome

    Example

    Individuals with high self-efficacy are more likely to take on challenging tasks and persist in the face of obstacles.

  • the percentage of people who benefit from a particular treatment or intervention

    Example

    The efficacy rate of the new vaccine is 95%.

Origins of efficacy

from Latin 'efficacia', meaning 'efficacy, efficiency'

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Summary: efficacy in Brief

The term 'efficacy' [ˈɛfɪkəsi] refers to the ability to produce a desired or intended result, often in the context of medicine, marketing, or politics. It is exemplified by phrases like 'The efficacy of the new drug has not yet been proven,' and 'The efficacy of the marketing campaign was impressive.' 'Efficacy' extends into phrases like 'political efficacy,' denoting the belief that one's political participation can make a difference in government, and 'self-efficacy,' referring to the belief in one's own ability to succeed.

How do native speakers use this expression?