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Effectiveness is the capability of producing a desired result. When something is deemed effective, it means it has an intended or expected outcome, or produces a deep, vivid impression.[1]

Etymology[edit]

The origin of the word "effective" stems from the Latin word effectīvus, which means creative, productive or effective. It surfaced in Middle English between 1300-1400 A.D.[2]

Usage[edit]

In mathematics, effective is sometimes used as a synonym of algorithmically computable.

In physics, an effective theory is, similar to a phenomenological theory, a framework intended to explain certain (observed) effects without the claim that the theory correctly models the underlying (unobserved) processes.

In heat transfer, effectiveness is a measure of the performance of a heat exchanger when using the NTU method.

In medicine, effectiveness relates to how well a treatment works in practice, as opposed to efficacy, which measures how well it works in clinical trials or laboratory studies.

In management, effectiveness relates to getting the right things done. Peter Drucker reminds us that “effectiveness can and must be learned.”.[3]

In human–computer interaction, effectiveness is defined as “the accuracy and completeness of users’ tasks while using a system”.[4]

Related terms[edit]

Efficacy, efficiency, and effectivity are terms that can, in some cases, be interchangeable with the term effectiveness. The word effective 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) and the comparison to a standard of the given effect. Efficacy, on the other hand, is the extent to which 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.[5]

Other synonyms for effectiveness include: clout, capability, success, weight, performance.[6] Antonyms for effectiveness include: uselessness, ineffectiveness.[7]

Another source of confusion regarding the term effectiveness is its relationship with the term affectiveness. Due to the similarity in the way these two words are spelled, they are often confused with each other and used incorrectly. The term affectiveness (noun) is derived from the root word affective (adjective) meaning concerned with arousing emotions or affection or relating to moods, attitudes or feelings.[8] Simply stated, effective means outcome and efficiency means output.

References[edit]

  1. ^ Dictionary.com, LLC. "Effectiveness | Define Effectiveness at Dictionary.com." Dictionary.com | Find the Meanings and Definitions of Words at Dictionary.com. 2011. Web. 28 Sept. 2011. <http://dictionary.reference.com/browse/effectiveness>.
  2. ^ Harper, Douglas. "Etymology Online." Online Etymology Dictionary. 2011. Web. 04 Oct. 2011. <http://www.etymonline.com/>.
  3. ^ Peter F. Drucker (2006). The Effective Executive: The Definitive Guide to Getting the Right Things Done. New York: Collins.
  4. ^ DIN EN ISO 9241-11. Ergonomic Requirements for office with visual display terminals – Guidance on usability. Beuth, Berlin (1998)
  5. ^ Longman, Pearson. "Effective - Definition from Longman English Dictionary Online." Longman English Dictionary Online. 2011. Web. 04 Oct. 2011. <http://www.ldoceonline.com/dictionary/effective>.
  6. ^ STANDS4 LLC. "Effectiveness Synonym." Synonyms.net. 2011. Web. 28 Sept. 2011. <http://www.synonyms.net/synonym/effectiveness>.
  7. ^ STANDS4 LLC. "Effectiveness Synonym." Synonyms.net. 2011. Web. 28 Sept. 2011. <http://www.synonyms.net/synonym/effectiveness>.
  8. ^ affectiveness. CollinsDictionary.com. Collins English Dictionary - Complete & Unabridged 11th Edition. Retrieved November 04, 2012.

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Effectiveness — Please support Wikipedia.
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20053511 news items

 
FierceHealthIT
Mon, 31 Aug 2015 10:48:45 -0700

She adds that the healthcare sector is still trying to figure out how to prove effectiveness, especially with the high costs of clinical trials and the need to partner with a hospital to reach patients and get access to resources. In addition ...

Memphis Daily News (blog)

Memphis Daily News (blog)
Mon, 31 Aug 2015 14:00:00 -0700

Surveys and focus groups that are a key part of the “No More” campaign to build awareness and change attitudes on rape, sexual assault and domestic violence are and will be a baseline to gauge how well the campaign does its job. MCGOWEN. “There are ...
 
MarketWatch
Mon, 31 Aug 2015 14:22:30 -0700

RSO, +3.51% (the "Company") announced today the effectiveness of its previously disclosed one-for-four reverse stock split of the Company's common stock. The reverse stock split was effective as of 5:00 PM Eastern time on August 31, 2015 (the ...
 
Fox Business
Mon, 31 Aug 2015 04:48:45 -0700

Phase 1 clinical trials are too small to test for a drug's effectiveness, though companies will suggest if a drug candidate seems effective based on the small pool of data. Also, Alnylam and Medicines are comparing figures in their ongoing study to ...
 
Addison County Independent
Mon, 31 Aug 2015 09:36:49 -0700

strict warning: Non-static method view::load() should not be called statically in /home/addison/public_html/sites/all/modules/views/views.module on line 1118. strict warning: Declaration of views_handler_field::query() should be compatible with ...

Small Business Trends

Small Business Trends
Sun, 30 Aug 2015 06:03:37 -0700

... member of the staff, we all go through periods when our motivation flags. “Motivate Your Team in 30 Days”, by Dave Urichuck and Bob Urichuck, offers a practical and thought-provoking look at motivating your team through team effectiveness meetings.

The 21st Century Supply Chain - Perspectives on Innovative (blog)

The 21st Century Supply Chain - Perspectives on Innovative (blog)
Mon, 31 Aug 2015 02:56:15 -0700

With this model of S&OP, process execution evolves into operational orchestration, efficiency goals are coupled with measures of effectiveness, and cost control objectives are appropriately balanced with mandates for delivering business performance and ...
 
Bloomington Pantagraph
Sun, 30 Aug 2015 05:00:00 -0700

The success of “budget guru'' Donna Arduin's tenure in the state of Illinois depends a lot on political perspective. Supporters of Gov. Bruce Rauner see her months as a special adviser as an effort to stem a tide of deficit budgets. Even though she's ...
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