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effectiveness

[ih-fek-tiv]

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adjective

adequate to accomplish a purpose; producing the intended or expected result: effective teaching methods; effective steps toward peace.

actually in operation or in force; functioning: The law becomes effective at midnight.

producing a deep or vivid impression; striking: an effective photograph.

prepared and available for service, especially military service.

noun

a member of the armed forces fit for duty or active service.

the effective total of a military force.

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Effectiveness is always a great word to know.

So is doohickey. Does it mean:

a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.

a gadget; dingus; thingumbob.

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Origin:
1350–1400; Middle English < Latin effectīvus practical, equivalent to effect(us), past participle of efficere (see effect) + -īvus -ive

Related forms

ef·fec·tive·ly, adverb

ef·fec·tive·ness, ef·fec·tiv·i·ty, noun

pre·ef·fec·tive, adjective

pre·ef·fec·tive·ly, adverb

qua·si-ef·fec·tive, adjective

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qua·si-ef·fec·tive·ly, adverb

sub·ef·fec·tive, adjective

sub·ef·fec·tive·ly, adverb

sub·ef·fec·tive·ness, noun

su·per·ef·fec·tive, adjective

su·per·ef·fec·tive·ly, adverb

su·per·ef·fec·tive·ness, noun

un·ef·fec·tive, adjective

un·ef·fec·tive·ly, adverb

un·ef·fec·tive·ness, noun

COLLAPSE

Can be confused: affective, effective (see synonym note at the current entry).

Synonyms
1. capable, competent. Effective, effectual, efficacious, efficient refer to that which is able to produce a (desired) effect. Effective is applied to that which has the power to, or which actually does, produce an effect: an effective action, remedy, speech. Effectual is used especially of that which produces the effect desired or intended, or a decisive result: An effectual bombardment silenced the enemy. Efficacious suggests the capability of achieving a certain end: an efficacious plan, medicine. Efficient (applied also to persons) implies the skillful use of energy or industry to accomplish desired results with little waste of effort: efficient methods; an efficient manager. 2. operative. 3. telling.

Antonyms
1. futile, useless.

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Link To effectiveness

Example Sentences

Fewer than a third of these prescriptions were supported by strong evidence of effectiveness.

Most studies he's seen show no difference in the effectiveness of the two media.

In sum, there are solid grounds to be sceptical about the effectiveness of across-the-board capital controls.

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Fewer than a third of these prescriptions were supported by strong evidence of effectiveness.

Most studies he's seen show no difference in the effectiveness of the two media.

In sum, there are solid grounds to be sceptical about the effectiveness of across-the-board capital controls.

Mud and other floating matter can detract from this method's effectiveness.

It is only a matter of cost effectiveness and to save the potentional loss of life in case of a catastrophy.

It still is, but a new repellent comes close in effectiveness.

All have been highly praised for their effectiveness.

Um, you need good information about which medical interventions work, and how well they work: comparative effectiveness research.

He highly recommends light therapy and says the research supports its effectiveness.

But advertisers also need to be able to measure the effectiveness of their campaigns.

The effectiveness of the drug may become blunted, or climbers might run out of dex altogether.

Several drugs help to wean cocaine addicts from their physical dependency, but the compounds are limited in effectiveness.

The effectiveness of stem cell therapies may rely not only on the nature of the cells involved, but the time of their application.

Empirical evidence is mixed on the effectiveness of forced rankings.

Effectiveness on the job in campus public relations usually comes down to credibility.

Once their effectiveness has run its course, memory loss and cognitive decline progress unimpeded, and sometimes even accelerate.

Labels provide information about the safety and effectiveness of cosmetic products.

No trials of effectiveness for disease prevention or treatment have begun.

But their increased use may be spurring pirates to think about ways to minimize their effectiveness.

Now researchers are looking for correlations between the value-added rankings and other measures of teacher effectiveness.

Their leaders and supporters must strive unflaggingly to reach higher levels of efficiency and effectiveness.

The piece begins with a rumination on the effectiveness of last year's stimulus plan.

There has been no really independent auditing of the effectiveness or progress.

Because scientists have found that, in battling chronic infections, sugar can boost the effectiveness of antibiotics.

Kremen explains how wild bees can boost the effectiveness of managed hives.

Some expressed mixed emotions about her effectiveness as their representative.

America's enemies will be delighted by yet another attempt to hobble the military and reduce its already limited effectiveness.

The feasibility and effectiveness of the technique is uncertain.

He plans to begin clinical trials to test its effectiveness in humans within six months.

In the game you also need to consider the effectiveness of their weapons, but this is a good guide to begin with.

It jumps from person to person because it increases rhetorical effectiveness of a statement.

The state's governor vetoed it, so the legislature has now called for a study of the effectiveness of capital punishment.

Arthroscopic knee surgery is a remedy for arthritis, but researchers have matched its effectiveness with a sham operation.

Ghostwritten articles also questioned other therapies and the effectiveness of generic hormone treatments, she says.

Neither organisation believes that the effectiveness of culling is scientifically established.

Students should evaluate their solutions for practicality and effectiveness.

At the same time, effectiveness has improved markedly.

As many critics have pointed out, the effectiveness of a carbon tax depends upon good knowledge of the proper price of carbon.

Biofilms also worsen some diseases and reduce the effectiveness of many antibiotics.

Which may also be a marker for their effectiveness as a team.

Commercial water filters vary widely in their effectiveness against different types of contamination.

Such a tool could save hours of time and transform effectiveness for resource-stretched groups.

It's not that regular soap will break the machine, it's simply a matter of effectiveness and convenience.

Solar panels and solar roof tiles are both viable options, but they differ in effectiveness and cost as well as in appearance.

Especially if more research comes in about their effectiveness.

Investigators explore the effectiveness of stretching by trying to separate real benefits from imagined ones.

However, capacity constraints have to date reduced the effectiveness of poverty-reduction strategies.

And the foreign patrols' effectiveness is declining as the pirates move ever farther offshore.

It's envisaged that an increase in security patrols will substantially increase the effectiveness of conservation efforts.

Unfortunately, their effectiveness declines over time while their addictiveness grows, meaning patients need the.

While many products have repellent properties, they are short-lived or their effectiveness is limited to certain species.

The goal of comparative effectiveness research isn't to kill people who otherwise have good and long lives ahead of them.

Work is reviewed for effectiveness in achieving program goals and objectives.

The new paper provides some welcome clarity on the effectiveness of inflow controls.

More research is needed to demonstrate beyond doubt the effectiveness of new treatments that re train the brain.

And as the technology's effectiveness improves, a new face may be the only way to preserve some semblance of privacy.

Debate continues to rage over the effectiveness of technology in learning, and how best to measure.

The intro bio students at my university routinely do a lab where they test the effectiveness of antibacterials.

And that will reduce the effectiveness of software filters set up to simply block allxxx names.

Government agencies, universities and corporations frequently enroll patients in studies developed to test the effectiveness of.

The survey found large-scale faculty engagement with online teaching but also broad suspicion about its effectiveness.

And once better nets are available, researchers will be able to objectively judge the effectiveness of the distribution programs.

But it was also a method of testing the effectiveness of an underwater electronics lab installed aboard the submersible.

Menachem said he reserves judgment about the bubble's long-term effectiveness.

Students were also shown some of the resulting videos and asked to rate their effectiveness at explaining the concept involved.

They tend to taste less salty, however, which might reduce their effectiveness if you use more of it to get the taste you want.

Several upgrades have maintained the craft's effectiveness over the years.

He had helped strengthen the organization's effectiveness with the press.

Accountability requires information, and nothing shows effectiveness better than an online survey of students.

Adult stem cells have limitations and as a result, are limited in their effectiveness in modern therapies.

Severe budget cuts and increased caseloads are gutting the effectiveness of the state court systems.

But the effectiveness of any particular filter is also quite a personal thing.

As you carry out the job, everyone is watching and judging your effectiveness.

Nudler and his team are already working on animals to study the safety and effectiveness of putting their findings to work.

Airlines need to team up with railway lines to optimize the effectiveness of our railway and airport systems.

Worse, when scholars and others do not employ fair use, they shrink its effectiveness as a right.

The project is supposed to test the effectiveness of antifungals in killing microbes in space.

Brown, who studies the role and effectiveness of campus technology officers.

Great to see some scientific backup to the effectiveness of meditation.

But it doesn't seem to have reduced any effectiveness.

We have a heavy teaching load and, appropriately, teaching effectiveness is important in tenure and promotion decisions.

These are great ideas to help improve our legislative effectiveness.

Before the effectiveness of a drug can be confirmed, it must be tested and tested again.

Health researchers still debate each approach's effectiveness.

Also, there is a point to be made concerning the effectiveness of the various different versions of this compound.

The effectiveness of such devices-which are largely experimental-tends to drop sharply within a few months of being implanted.

COLLAPSE

Collins

World English Dictionary

effective (ɪˈfɛktɪv)

—*adj*
1.	productive of or capable of producing a result
2.	in effect; operative: effective from midnight
3.	producing a striking impression; impressive: an effective entrance
4.	(prenominal) actual rather than theoretical; real: the effective income after deductions
5.	(of a military force, etc) equipped and prepared for action
6.	physics See also root mean square (of an alternating quantity) having a value that is the square root of the mean of the squares of the magnitude measured at each instant over a defined period of time, usually one cycle

—n
7.	a serviceman who is equipped and prepared for action

ef'fectively

—*adv*

ef'fectiveness

—n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source

Etymonline

Word Origin & History

effective

late 14c., from Fr. effectif, from L. effectivus (see effect). Related: Effectively; effectivity.

EXPAND

effectiveness

c.1600, from effective + -ness.

COLLAPSE

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"It does not follow, because our difficulties are stupendous, because there are some souls timorous enough to doubt the validity and effectiveness of our ideals and our system, that we must turn to a state controlled or state directed social or economic system in order to cure our troubles."

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