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.
244011 videos foundNext > 

8 elements of personal effectiveness

Join leadership and personal development expert Robert White of Extraordinary People as he shares learnings from the over one million graduates of Lifespring...

Efficiency vs Effectiveness

In this short video clip, we have explained the difference between effectiveness and efficiency, using an 2D animation cartoon of two hunters shooting guinea...

Efficiency vs Effectiveness - SCM 304

Efficiency vs Effectiveness - By Brooklyn and The Boys.

Testing the effectiveness of a spear throw against padded armor

Could a thrown spear penetrate thick clothing or padded armor far enough to cause a potentially lethal wound in a historical duel? And how well would a gambeson / aketon / arming doublet protect...

Organizational Effectiveness vs Organizational Effeciency - Dave Lindahl

Organizational Effectiveness vs Organizational Effeciency - Dave Lindahl When it comes to following a business strategy there's a difference between doing th...

The Secret Formula for Organizational Effectiveness

Time Management: Efficiency vs Effectiveness

Visit http://www.TimeManagementWorkshops.com for more on Time Management with Roger Reece. Refining and streamlining processes to get results as quickly as p...

Peter Norvig - The Unreasonable Effectiveness of Data

How Billions of Trivial Data Points can Lead to Understanding Peter Norvig (Director of Research, Google) presents as part of the UBC Department of Computer ...

UCP Effectiveness

In this video we look at the effectiveness of the U.S. Army's Universal Camouflage Pattern (UCP) in a Woodland Environment. This video will consist of numero...

MultiCam® Effectiveness PART II

This is PART II of my MultiCam® effectiveness video. In my previous video I tested the pattern in the spring time when the environment was very lush and gree...

244011 videos foundNext > 

22554011 news items


Thu, 26 Feb 2015 14:20:30 -0800

Today the agency's advisory committee changed its position, telling doctors to use either kind of vaccine in children, with no particular preference for the nasal spray. The vaccine-effectiveness percentage is just an average. The real effectiveness ...

Fox News

Fox News
Thu, 26 Feb 2015 09:03:45 -0800

Researchers at Dana Farber Cancer Institute in Boston have developed a new technique that can predict which specific drug will be most effective in treating various types of cancer tumors. The technique is called Dynamic BH3 Profiling, or DBP, and in ...

Jamaica Observer

Jamaica Observer
Fri, 27 Feb 2015 00:15:00 -0800

Minister of Education Ronald Thwaites (centre) showing off the School Effectiveness Toolkit which was presented to the Ministry of Education by the Inter-American Development Bank (IDB) yesterday. With him (from left) are Cynthia Hobbs, senior ...
EurekAlert (press release)
Fri, 27 Feb 2015 01:00:00 -0800

The research team looked at an antibody-based approach to detect structural changes in certain proteins, in order to track the effectiveness of the TKI drugs. The instrument used fixes proteins in place and holds them, there allowing for a better ...
LubbockOnline.com (blog)
Thu, 26 Feb 2015 17:15:19 -0800

The overall take-away is that most Texans see the Federal Government as the enemy; 57 percent of Texans, to be exact. And I'm not shocked even one bit, given the fact that Texans have been repeatedly subjected to anti-Fed talking points since the ...

Military & Aerospace Electronics

Military & Aerospace Electronics
Thu, 26 Feb 2015 08:18:45 -0800

ARLINGTON, Va., 26 Feb. 2015. U.S. military researchers are asking industry to find news ways to make small units of infantry warfighters more effectively and deadly using existing weapons and unmanned systems. Officials of the U.S. Defense Advanced ...


Thu, 26 Feb 2015 08:52:30 -0800

Holyoke to show fire demonstration about effectiveness of home sprinklers. mainfire.jpg. Scenes like this house fire on the 800 block of Main Street in Holyoke on Jan. 29, 2014 are what officials want to avoid by demonstrating the benefits of home ...

Medical Marketing and Media

Medical Marketing and Media
Thu, 26 Feb 2015 13:04:54 -0800

The Patient-Centered Outcomes Research Institute (PCORI), a not-for-profit organization tasked by Congress to conduct comparative-effectiveness research, finalized the way it plans to make public the findings of the studies it is funding. The ...

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