Used and loved by millions

Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

A number of studies

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "A number of studies" is correct and usable in written English.
You can use it when referring to a large amount of research done on a particular subject over a period of time. For example, "A number of studies have been conducted on the effects of smoking on human health."

✓ Grammatically correct

Science

News & Media

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

A number of studies have pointed to serious problems.

News & Media

The Guardian

A number of studies also suggest that male fertility may diminish with age.

News & Media

The New York Times

A number of studies are looking for ways to protect the cells of the optic nerve.

A number of studies have investigated this, and, not surprisingly, estimates vary.

News & Media

The New Yorker

A number of studies involving thousands of patients in this country and elsewhere are in progress.

News & Media

The New York Times

A number of studies have attempted to find such charts.

A number of studies have suggested involvement of celestial cues as basis for navigation11.

Science & Research

Nature

A number of studies suggest that REM sleep benefits the brain.

A number of studies have also shown that transmission can occur between couples, too.

A number of studies have highlighted the potential importance of NK cells during HCV infection11.

Science & Research

Nature

A number of studies have demonstrated that knockdown of specific inflammatory mediator(s) affect atherosclerosis21,22.

Science & Research

Nature
Show more...

Expert writing Tips

Best practice

When using "a number of studies", ensure that the statement is supported by credible sources. Always cite specific studies when possible to strengthen your argument.

Common error

Avoid using "a number of studies" without providing specific details or citations. Overgeneralizing can weaken your argument and credibility.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

85%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "a number of studies" functions as a determiner phrase followed by a plural noun. It serves to quantify the amount of research that supports a particular claim or finding. As confirmed by Ludwig AI, the phrase is grammatically correct and frequently used.

Expression frequency: Very common

Frequent in

Science

30%

News & Media

30%

Formal & Business

20%

Less common in

Wiki

10%

Encyclopedias

5%

Reference

5%

Ludwig's WRAP-UP

In summary, "a number of studies" is a grammatically correct and widely used phrase to indicate that a claim is supported by multiple research efforts. Ludwig AI confirms its validity and common usage. Its prevalence in scientific, news media, and formal business contexts underscores its role in presenting evidence-based arguments. While highly versatile, ensure its usage is supported by actual research and avoid overgeneralization to maintain credibility. Alternatives like "numerous studies" or "several studies" can be used for variety, but "a number of studies" effectively conveys a substantial body of evidence.

FAQs

How can I use "a number of studies" in a sentence?

You can use "a number of studies" to introduce evidence supporting a claim. For example, "A number of studies have shown a correlation between exercise and improved mental health."

What are some alternatives to "a number of studies"?

Some alternatives include "numerous studies", "many studies", or "several studies" depending on the specific context.

Is it better to say "a number of studies" or to list the specific studies?

Listing specific studies provides more concrete evidence. However, "a number of studies" is useful for summarizing a broad consensus or when specific citations are not necessary.

What's the difference between "a number of studies" and "some studies"?

"A number of studies" implies a more substantial body of evidence than "some studies", suggesting a greater degree of research has been conducted.

ChatGPT power + Grammarly precisionChatGPT power + Grammarly precision
ChatGPT + Grammarly

Editing plus AI, all in one place.

Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.

Source & Trust

85%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: