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a desired effect is achieved; the ability to produce a desired amount of the desired effect, or the success in achieving a given goal. Contrary to the term efficiency, the focus of efficacy is the achievement as such, not the resources spent in achieving the desired effect. Therefore, what is effective is not necessarily efficacious, and what is efficacious is not necessarily efficient.
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is sometimes used in a quantitative way, "being very effective or not very effective". However, neither "effectiveness", nor "effectively", inform about the direction (positive or negative) or gives a comparison to a standard of the given effect. Efficacy, on the other hand, is the extent to which
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Simply stated, effective means achieving an effect, and efficient means getting a task or job done it with little waste. To illustrate: suppose, you build 10 houses, very fast and cheap (efficient), but no one buy them. In contrary to building 5 houses same budget and time as 10 houses but you get
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effectiveness when he refers to "a number of countries a relatively low level of institutional effectiveness", which leads to "greater problems for their people while benefiting those who profit from this situation". He refers, for example, to countries whose
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is a criterion used to assess changes determined in the target system, in its behavior, capability, or assets, tied to the attainment of an end state, achievement of an objective, or creation of an effect, while
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Dictionary.com, LLC. "Effectiveness | Define
Effectiveness Dictionary.com." Dictionary.com | Find the Meanings and Definitions of Words at Dictionary.com. 2011. Web. 28 Sept. 2011. <
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that articulates who it serves, what it aspires to be, and what it values. Likewise, an effective institution has clear goals that are broadly communicated to its
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Other synonyms for effectiveness include: clout, capability, success, weight, performance. Antonyms for effectiveness include: uselessness, ineffectiveness.
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theory, a framework intended to explain certain (observed) effects without the claim that the theory correctly models the underlying (unobserved) processes.
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Longman, Pearson. "Effective - Definition from
Longman English Dictionary Online." Longman English Dictionary Online. 2011. Web. 04 Oct. 2011. <
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DIN EN ISO 9241-11. Ergonomic
Requirements for office with visual display terminals – Guidance on usability. Beuth, Berlin (1998)
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all 5 sold and the buyers are happy (effective). You get the desired result selling your houses and happy customers (effect).
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measures the ability of a military force to accomplish its objective and is one component of overall military effectiveness."
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is: "...the readiness of a military unit to engage in combat based on behavioral, operational, and leadership considerations.
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is the capability of producing a desired result or the ability to produce desired output. When something is deemed
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575:"Combat Effectiveness", The Oxford Companion to American Military History. Encyclopedia.com. 24 Jan. 2019.
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Commander’s
Handbook for Strategic Communication and Communication Strategy, US Joint Forces Command, 2010.
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be learned". The term "institutional effectiveness" has been widely adopted within
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STANDS4 LLC. "Effectiveness
Synonym." Synonyms.net. 2011. Web. 28 Sept. 2011. <
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The
Effective Executive: The Definitive Guide to Getting the Right Things Done
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in New York State holds that "an effective institution is characterized by a
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Effectiveness vs. Efficacy vs. Efficiency – Differences | Dictionary.com
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is used to describe metalogical methods that fit the criteria of an
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A US military exercise, designed to increase combat effectiveness
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30:"Effective" redirects here. For the album by Side Effect, see
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