Is It Correct to Say “These Data”?

Language can be tricky, especially when small details change the way we write and speak. One such detail appears in the phrase “These Data.” Many people see it in academic writing, research papers, and professional reports, yet they are often unsure how to use it correctly. Understanding the meaning and proper context of this phrase helps writers communicate information clearly and accurately.

In traditional grammar, data is the plural form of datum, which means a single piece of information. Because of this, the phrase “These Data” follows the rule of plural agreement. It is commonly used in scientific studies, statistics, and research discussions where multiple pieces of information are being analyzed or presented.

Today, the use of “These Data” also reflects the balance between formal grammar and modern language trends. While many people casually treat data as a singular word, formal and academic writing still prefers the plural form in many cases. Learning when and how to use “These Data” correctly can improve clarity, strengthen credibility, and make your writing sound more professional.

The Basics of “Data”

Understanding how to use “data” starts with knowing its origin and grammatical roots.

The word “data” comes from Latin. It is technically the plural of datum, which means a single piece of information. In traditional grammar:

• Datum = singular
• Data = plural

So, by classical rules, you would say:

• Correct: These data are compelling.
• Correct: Each datum is carefully recorded.

However, modern usage often treats “data” as a collective noun—like “information”—allowing singular verbs:

• Acceptable today: This data is compelling.

This evolution means that both forms can be correct, depending on context.

Quick Reference Table

Form	Example	Notes
datum	The datum is recorded.	Singular; rarely used in casual writing
data (plural)	These data are significant.	Traditional, formal, academic
data (singular)	The data is compelling.	Common in business, journalism, tech

Historical Perspective

To understand why “these data” feels formal or even awkward to some, we need to look at history.

Originally, English borrowed “data” directly from Latin, where it was always plural. Early scientific publications in the 17th and 18th centuries consistently treated it as such. Academic papers from that era would write “these data suggest…” instead of “this data suggests…”.

Over time, especially in the 20th century, writers began treating “data” as a mass noun, similar to “information” or “equipment.” This trend is particularly strong in journalism, corporate communication, and tech fields, where simplicity and clarity often outweigh strict grammatical rules.

Even style authorities differ:

• Oxford English Dictionary: Notes both singular and plural usage.
• Chicago Manual of Style: Prefers plural in scientific writing, singular in general prose.
• APA Style: Accepts singular for collective sense; plural for countable instances.

So, knowing your audience is crucial. Academic journals expect plural “data,” while blog posts or company reports might read better with singular “data.”

Grammar Rules for “These Data”

Let’s break down the rules for using “these data” properly.

When Plural Usage Is Correct

• In academic papers, research studies, and scientific reports
• When referring to individual pieces of data
• With plural verbs: These data show a significant trend.

When Singular Usage Works

• In everyday writing or journalism
• When data is treated as a whole collection
• With singular verbs: This data is from last year’s survey.

Rule of thumb: If you’re counting or analyzing individual points, use plural. If you’re speaking about data as a general concept, singular is fine.

Common Mistakes and Misconceptions

Many writers stumble with “data” because of inconsistent guidance. Here are frequent errors:

• Mixing singular and plural incorrectly:
  • Incorrect: This data are compelling.
  • Correct: This data is compelling. or These data are compelling.
• Assuming “data” is always singular: Academic editors may mark this as an error in journals.
• Overcorrecting for formality: Some people avoid “these data” entirely, using awkward alternatives like “these pieces of data.” While grammatically safe, it’s unnecessary in most contexts.

Understanding these pitfalls helps you write with confidence and precision.

Examples in Real Writing

Seeing “these data” and “this data” in context clarifies the usage differences.

Academic Example

From a psychology journal:

These data indicate a significant correlation between stress levels and sleep quality.

• Plural form emphasizes multiple data points analyzed.

Business Example

From a corporate report:

This data shows that customer engagement increased by 20% over six months.

• Singular form treats data as a whole, not individual entries.

Journalism Example

From The New York Times:

The data is clear: electric vehicle adoption is rising.

• Singular is more natural for general readers.

By comparing contexts, you can see when “these data” fits naturally and when a singular alternative works better.

Guidelines for Writers

Here’s a practical checklist for choosing between “these data” and “this data”:

• Know your audience: Academic or scientific? Go plural. Business or casual? Singular may work.
• Be consistent: Stick to one form throughout your document. Switching mid-text confuses readers.
• Use style guides: APA, Chicago, and MLA provide guidance depending on your field.
• Consider alternatives: Sometimes “these findings” or “this information” reads more smoothly.

Cheat Sheet Table

Audience/Context	Recommended Usage	Example
Academic / Scientific	Plural	These data support the hypothesis.
Business / Corporate	Singular	This data is from last quarter.
Journalism / Blog	Singular	The data shows a clear trend.
Conversational	Singular	This data is really interesting!

Read More:Understanding Body Descriptors: ‘Thick’, ‘Fat’, and ‘Chubby’

Pronunciation and Everyday Speech

Most people debate spelling but rarely pronunciation.

• Common pronunciations: day-tuh and daa-tuh
• Plural or singular? Pronunciation doesn’t change; context guides verb usage.
• In conversation, it’s often easier to say “this information” instead of “these data” for smoother flow.

Even in speech, clarity and comprehension matter more than strict grammar rules.

Case Study: How Publications Handle “Data”

Scientific Journals

• Nature, Science, and The Lancet consistently use plural verbs:
  These data suggest a new approach to vaccine distribution.

Corporate Blogs

• Tech companies often prefer singular:
  This data is collected from over 10,000 users.

Newspapers

• Publications like The New York Times and The Guardian lean singular in general reporting:
  The data shows that more people are working remotely.

This demonstrates how context, audience, and tradition shape the correct usage.

Summary and Quick Reference

Using “these data” correctly boils down to context and consistency.

Key Takeaways:

• “Data” is plural in Latin; “datum” is singular.
• Academic and scientific writing: plural “these data” with plural verbs.
• Everyday writing: singular “this data” is acceptable.
• Always match verb form to your chosen usage.
• Consider alternatives like “these findings” or “this information” if it improves clarity.

Quick Cheat Sheet

Phrase	Usage	Verb Form
These data	Formal, academic	Are
This data	Modern, business, casual	Is
These findings	Any context	Are
This information	Any context	Is

Conclusion

So, is it correct to say “these data”? Absolutely—in the right context. Plural is preferred in scientific and academic writing. Singular works in business, journalism, and everyday communication. The key is consistency, audience awareness, and clarity.

Next time you pause before writing “these data” or “this data,” ask yourself: Who is reading this? Am I analyzing multiple points or speaking generally? Follow these rules, and you’ll write confidently, naturally, and correctly.

faqs

What does “These Data” mean?

“These Data” refers to multiple pieces of information or facts being discussed or analyzed. Since data is traditionally the plural form of datum, the phrase is used when talking about several sets or points of information rather than a single one.

Is it correct to say “These Data”?

Yes, it is grammatically correct. In formal and academic writing, data is treated as a plural noun, so using “These Data” follows proper plural agreement. For example, researchers often write, “These data show a clear pattern.”

Why do some people say “This Data” instead?

In modern everyday English, many people treat data as a singular mass noun, similar to words like information. Because of this, phrases like “This data is useful” are common in casual or business communication, even though traditional grammar prefers the plural form.

Where is “These Data” commonly used?

The phrase “These Data” appears most often in academic papers, scientific reports, research articles, and statistical analysis. Writers use it when referring to multiple findings, measurements, or datasets.

Should I always use “These Data” in writing?

It depends on the context and style guide you follow. Academic and scientific writing usually prefers “These Data.” However, in general or informal writing, treating data as singular is often acceptable.