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If an organization deals with too many things on an ad hoc basis, it may mean someone hasn't been doing enough planning. See ad hoc defined for English-language learners. The mayor appointed an ad hoc committee to study the project. We had to make some ad hoc changes to the plans.

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ad hoc. See words that rhyme with ad hoc Thesaurus: All synonyms and antonyms for ad hoc Nglish: Translation of ad hoc for Spanish speakers Britannica English: Translation of ad hoc for Arabic speakers.

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The awkward case of 'his or her'. Test your knowledge - and maybe learn something along the way. Build a city of skyscrapers—one synonym at a time. Explore the year a word first appeared. Definition of ad hoc: Get Word of the Day daily email, delivered to your inbox! Origin and Etymology of ad hoc borrowed from Latin, "for this". Examples of ad hoc in a Sentence The mayor appointed an ad hoc committee to study the project.

We'll hire more staff on an ad hoc basis. The scientific method dictates that, if a hypothesis is rejected, then that is final. The research needs to be redesigned or refined before the hypothesis can be tested again.

Amongst pseudo-scientists, an ad hoc hypothesis is often appended, in an attempt to justify why the expected results were not obtained. An often quoted example of an ad hoc analysis is of a paranormal investigator investigating psychic waves, under scientific conditions.

Upon finding that the experiment did not give positive results, they blame the negative brain waves given out by others. The oft-quoted example of an ad hoc analysis is of a paranormal investigator investigating psychic waves, under scientific conditions. This is simply trying to deflect criticism and failure by throwing out other, completely random reasons.

This ad hoc analysis would need the brain waves of the onlookers to be also tested and eliminated, moving the goalpost and creating a fallacy. The idea of biorhythms, where the body and mind are affected by deep and regular cycles unrelated to biological circadian rhythms, has long been viewed with skepticism.

Every time that scientific research debunks the theory, the adherents move the goal posts, inventing some other underlying reason to explain the results. This, of course, is impossible to prove and so the ad hoc analysis conveniently removes the pseudo-science from the debate. Ad hoc analysis is not always a bad thing, and can often be part of the process of refining research.

Imagine, for example, that a research group was conducting an experiment into water turbulence, but kept receiving strange results, disproving their hypothesis. Whilst attempting to eliminate any potential confounding variables, they discover that the air conditioning unit is faulty, transmitting vibrations through the lab. This is switched off when the experiment is running and they retest the hypothesis. This is part of the normal scientific process, and is part of refining the research design rather than trying to move the goalposts.

Ad hoc analysis is only a problem when a non-testable ad hoc hypothesis is added to the results to justify failure and deflect criticisms. The air conditioning unit hypothesis can be tested very easily, simply by switching it off, and was a result of experimental flaw.

Negative brainwaves cannot be easily tested, and therefore the deflection causes a fallacy. Check out our quiz-page with tests about:. Martyn Shuttleworth Nov 17,

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Research designed for a specific purpose and specific client, and conducted as a one-off study or programme of studies (as opposed to being conducted on a regular or continuous basis). Most qualitative market research is ad hoc.

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Continous vs Ad-Hoc Research, as explained by DJS Research Ltd. Continuous Research A survey conducted both regularly and frequently among parallel samples within the same population; or a survey in which the interviews are .

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Ad-hoc research can either be custom designed or an omnibus survey. i. A custom designed ad-hoc research investigates the client’s problem and the research project is designed to serve the specific requirements of the client. Definition of Ad-hoc research. research which is conducted first hand on a one-off basis for a particular research project.

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Ad hoc can be used as an adjective or an adverb. It is used more often as an adjective, especially in these expressions: ad hoc committee; ad hoc group; ad hoc basis Below are some example sentences with ad hoc that help illustrate its meaning: ad hoc used as an adjective. The mayor appointed an ad hoc committee to study the project. Definition of ad hoc: Action taken for a particular reason or in a special situation, such as an ad hoc committee formed to consider a specific, urgent matter. Latin for, for this purpose. Dictionary Term of the Day Articles Subjects .