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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
CEO of Professional Science Editing for Scientists @ prosciediting.com
quantified by
Grammar usage guide and real-world examplesUSAGE SUMMARY
"quantified by" is a perfectly acceptable phrase to use in written English.
For example, you could use it in a sentence like this: "The success of the project was quantified by a combination of increased customer satisfaction and increased sales."
✓ Grammatically correct
Science
News & Media
Formal & Business
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
AEA was quantified by LC/MS/MS.
UDCA was quantified by an external standard.
Ethanol was quantified by gas chromatography [10].
GA2ox1 was quantified by SYBR green.
Science
The lipids were quantified by liquid scintillation.
Science
Apoptosis was quantified by the TUNEL method.
Science
Property superiority is quantified by property optimality.
Depowdering efficiency was quantified by microstructural morphometry.
Science
TILs were quantified by image analysis.
Science
In this digital age, quality is now quantified by popularity.
News & Media
Silencing was quantified by immunoblotting.
Science
Expert writing Tips
Best practice
Opt for "quantified by" when you want to highlight the measurement process as a validation of results.
Common error
Avoid using "quantified by" without specifying the units or metrics used. For example, instead of saying 'Success was quantified by results', specify 'Success was quantified by a 20% increase in sales'.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "quantified by" functions as a passive construction, indicating that the subject of the sentence is being measured or assessed according to a specific metric or method. Ludwig provides numerous examples where "quantified by" is used to describe scientific measurements and evaluations.
Frequent in
Science
76%
News & Media
13%
Formal & Business
11%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "quantified by" is a versatile phrase that allows a writer to describe, in the passive voice, the manner in which data was gathered or an assessment was made. Ludwig confirms the grammatical correctness and common usage of this phrase, predominantly in scientific contexts. While "quantified by" is a useful tool, remember to be specific about what is being measured and what metric is being used. Alternatives such as "measured through", "assessed via", and "determined using" may be used for similar meaning.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
measured through
Replaces "quantified" with "measured" and restructures the sentence to use "through" instead of "by".
assessed via
Substitutes "quantified" with "assessed" and "by" with "via", emphasizing evaluation rather than strict numerical measurement.
determined using
Replaces "quantified" with "determined" and "by" with "using", highlighting the method used for determination.
evaluated in terms of
Replaces "quantified by" with a broader evaluative phrase, suggesting a more comprehensive assessment.
expressed as
Focuses on the representation of a quantity, rather than the act of quantification itself.
calculated from
Highlights the computational aspect of quantification, implying a mathematical derivation.
indexed against
Suggests a comparison to a standard or benchmark, rather than a direct measurement.
estimated based on
Indicates an approximate quantification, relying on estimations rather than precise measurements.
characterized through
Focuses on describing the characteristics rather than strictly quantifying.
judged on the basis of
Shifts the focus to subjective judgment based on certain criteria, rather than objective quantification.
FAQs
How can I use "quantified by" in a sentence?
Use "quantified by" to show how something is measured or assessed. For example, "The effectiveness of the drug was quantified by a decrease in symptoms".
What are some alternatives to "quantified by"?
You can use alternatives like "measured through", "assessed via", or "determined using", depending on the context.
Is it better to use active or passive voice with "quantified by"?
The phrase "quantified by" is inherently passive. To use the active voice, rephrase the sentence, for example, "Researchers quantified the results using statistical analysis" instead of "The results were quantified by statistical analysis".
What does "quantified by" mean?
"Quantified by" means that something has been measured or expressed numerically. It indicates the method or criteria used to assign a numerical value.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested