digplanet beta 1: Athena
Share digplanet:


Applied sciences






















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]


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]


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.


  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.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.

15159113 news items

U.S. News & World Report

U.S. News & World Report
Mon, 03 Aug 2015 05:33:45 -0700

Report: Scant Scientific Evidence for Head Start Programs' Effectiveness. A review of 90 studies found only one that met scientific muster, and it showed disappointing results. A new study found female Head Start employees report higher levels of poor ...


Sun, 02 Aug 2015 17:22:30 -0700

While Caitlyn Jenner quickly became a darling of the political left amid the media storm over her transgender identity, liberal movers and shakers also have to deal with moments when things don't go according to script. Such as when Jenner was chatting ...


Sun, 02 Aug 2015 12:01:47 -0700

There's a new tool in the fight against Ebola in West Africa: rVSV-ZEBOV, a vaccine that has recently concluded a study phase, with researchers finding that it was incredibly effective against the deadly disease. While it's still in trial stages, the ...
Sun, 02 Aug 2015 20:45:00 -0700

Approximately 72 million people are obese in the United States and 200,000 people have bariatric surgery—or weight loss surgery—each year, according to The American Society for Metabolic and Bariatric Surgery. Last week, the Food and Drug ...


Sat, 01 Aug 2015 18:18:45 -0700

TYLER (KYTX) - According to presidential candidate Rick Perry on gun free zones, "these concepts of gun free zones are a bad idea." In wake of the shootings in Lafayette Louisiana, the debate over whether gun free zones are effective has been called in ...

Business 2 Community

Business 2 Community
Sat, 01 Aug 2015 16:03:45 -0700

When we're talking to a new client, we like to learn as much as we can about the training program they currently have in place. A really important part of that discussion is “How's it working?” And even more important, “How do you know?” That second ...
Wed, 29 Jul 2015 22:26:15 -0700

Mobile advertising is a big business. This year, in the US, advertisers will spend $28.72 billion to reach their targets on mobile devices, eMarketer estimates, an increase of 50.0% over 2014 spending levels. But—as is common with so many digital ...
Sat, 01 Aug 2015 19:15:00 -0700

BEIJING, Aug.2 (Xinhua) -- Some international meetings end up being all talk but no action. The Group of 20 (G20), representing the bulk of the world economy, can avoid this by setting up a "global economic coordination system" to enhance its ...

Oops, we seem to be having trouble contacting Twitter

Support Wikipedia

A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia. Please add your support for Wikipedia!

Searchlight Group

Digplanet also receives support from Searchlight Group. Visit Searchlight