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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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a test of whether

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "a test of whether" is correct and usable in written English.
You can use the phrase when discussing the evaluation of an outcome or the confirmation of a hypothesis, for example: "The experiment was a test of whether humans can indeed influence the weather with their thoughts."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

Actually it is a test of whether predictions are possible in California politics.

News & Media

The New York Times

presented a test of whether the extra reduction would apply to United Nations agencies.

News & Media

The New York Times

"The Line" is a test of whether viewers will come back for a serialized story.

But the Kang Nam 1 is a test of whether United Nations sanctions have some teeth.

News & Media

The New York Times

It is a test of whether football exists there in any meaningful sense.

That's a test of whether Republicans can hold a minority district.

News & Media

The New York Times

But the country is a test of whether the EU can keep the Balkans from exploding.

News & Media

The Economist

It will be a test of whether the government puts political reflexes ahead of economic principles.

News & Media

The Economist

The trade pact will be a test of whether that hope can be fulfilled.

News & Media

The Economist

What actually results is the replacement of Bolam – a test of whether the treatment was carried out responsibly – with a completely different one, a test of whether procedures were followed when deciding to treat.

News & Media

The Guardian

Some describe the election as a test of whether Republican moderates can succeed in California politics, as well as a test of whether President Bush made the right choice in deciding to promote Mr. Riordan's candidacy.

News & Media

The New York Times
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Expert writing Tips

Best practice

Use "a test of whether" when you want to emphasize the evaluative nature of a situation or experiment. It is appropriate when determining the presence or absence of a specific condition or outcome.

Common error

Avoid using "a test of whether or not" unless absolutely necessary for clarity. The "or not" is often implied and omitting it makes the sentence more concise.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

89%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "a test of whether" functions as a noun phrase introducing a condition or proposition to be evaluated. It indicates that a process, experiment, or situation serves to determine the truth or validity of something. According to Ludwig, it is grammatically correct and widely usable.

Expression frequency: Very common

Frequent in

News & Media

75%

Science

15%

Formal & Business

5%

Less common in

Encyclopedias

1%

Wiki

1%

Social Media

3%

Ludwig's WRAP-UP

In summary, the phrase "a test of whether" is a grammatically correct and frequently used expression that introduces a situation or experiment designed to determine a specific outcome. It is most commonly found in news and media, science, and formal business contexts. As confirmed by Ludwig, this phrase is best used to frame questions or hypotheses needing evaluation, and writers should be mindful to avoid redundancy by omitting "or not" unless necessary for clarity. Several alternatives exist, such as "an evaluation to see if" or "a determination regarding if", offering nuanced ways to express similar concepts.

FAQs

How can I use "a test of whether" in a sentence?

Use "a test of whether" to introduce a scenario or experiment designed to determine if something is true or will happen. For example, "The study was "a test of whether" the new drug could reduce blood pressure".

What are some alternatives to "a test of whether"?

You can use phrases like "an evaluation to see if", "a determination regarding if", or "an assessment of if" as alternatives to ""a test of whether"", depending on the specific nuance you want to convey.

Is it grammatically correct to say "a test of whether or not"?

While grammatically correct, including "or not" after "whether" is often redundant. In most cases, ""a test of whether"" already implies both possibilities, so omitting "or not" makes your sentence more concise.

What is the difference between "a test of whether" and "a test that"?

"A test of whether" introduces a condition or outcome to be determined, whereas "a test that" describes a characteristic of the test itself. For example, "This is "a test of whether" the patient has the disease" versus "This is a test that requires fasting".

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Source & Trust

89%

Authority and reliability

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Real-world application tested

Most frequent sentences: