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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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held constant

Grammar usage guide and real-world examples

USAGE SUMMARY

"held constant" is correct and usable in written English.
You can use it to refer to something that remains unchanged over a period of time. For example: "The cost of living has increased significantly, but the value of the dollar has been held constant."

✓ Grammatically correct

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Physicality was held constant.

Everything else was held constant.

All other subject characteristics were held constant.

Course material was held constant across semesters.

It isn't; enrollment has held constant.

News & Media

The New Yorker

Other deposition conditions were held constant.

All other factors were held constant.

Ruminally degradable protein was held constant at 10.1% of DM.

The dosages of frother and depressant were held constant.

In the experiment the ambient conditions are held constant.

The thicknesses of these layers were held constant.

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Expert writing Tips

Best practice

When writing scientific papers or reports, ensure that you explicitly state which variables were "held constant" to maintain experimental control and validity.

Common error

Be aware that "held constant" is specific to the context in which other factors are being manipulated. Don't assume that because something is "held constant" in one situation, it will always be so in every situation.

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 "held constant" functions as a modifier, specifying that a particular variable or condition remained unchanged during a process or experiment. This is supported by Ludwig AI, which confirms its correct usage. It is used to ensure that observed changes can be attributed to other factors.

Expression frequency: Very common

Frequent in

Science

60%

Academia

20%

News & Media

10%

Less common in

Formal & Business

5%

Encyclopedias

3%

Wiki

2%

Ludwig's WRAP-UP

In summary, the phrase "held constant" is a grammatically sound and frequently used term, particularly within scientific and academic contexts. As confirmed by Ludwig AI, its purpose is to denote the unchanging state of a variable during a process, ensuring experimental validity. When employing this phrase, prioritize clarity and accuracy, explicitly specifying which variables were kept constant and why. While "held constant" is most common in formal writing, understanding its function is crucial for comprehending research findings and technical documentation. Consider using alternatives like "remained unchanged" or "kept stable" to diversify your writing while retaining the core meaning.

FAQs

How can I use "held constant" in a sentence?

Use "held constant" to describe variables that are intentionally kept the same in an experiment or analysis. For example, "Temperature was "held constant" to isolate the effect of pressure".

What are some alternatives to "held constant"?

Alternatives include "remained unchanged", "kept stable", or "maintained consistently". The best choice depends on the specific context.

Is it grammatically correct to say "hold constant" instead of "held constant"?

Both phrases can be grammatically correct depending on the context. "Hold constant" is often used in instructions or hypothetical situations, while "held constant" describes a past or present action. For example, "We will hold the temperature constant" vs. "The temperature was "held constant" during the experiment".

What does it mean when a variable is "held constant" in a scientific experiment?

It means that the variable's value is not allowed to change during the experiment. This ensures that any observed effects are due to changes in other variables, rather than the one "held constant".

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Most frequent sentences: