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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
upon observation
Grammar usage guide and real-world examplesUSAGE SUMMARY
"upon observation" is a correct and usable phrase in written English.
It is typically used to introduce a conclusion based on something that has been observed or studied. For example: "Upon observation, it appears that the policy has been effective in reducing cases of discrimination in the workplace."
✓ Grammatically correct
Science
News & Media
Academia
Encyclopedias
Wiki
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
47 human-written examples
For instance a piece of graffiti may look innocuous upon observation but become suspicious when observed at multiple polling locations.
Science
It is notable that women seldom mentioned "before feeding a child" or "after cleaning a child" as times they wash hands with soap (15 % and 14%%, respectively); however upon observation, 27 % and 54 %, respectively were observed using soap.
Science
Finally, analysis of behavior of the non-injected subjects (the observers) in the OI dyads revealed that dominant observers were more often involved in Self-grooming behavior upon observation of their subordinate partner in pain.
Science
Science is based upon observation.
Empirical means it's based upon observation.
Academia
"Culturally, they bond because they're really based upon observation.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
13 human-written examples
Participant observation 27 will be carried out related to admission and discharge transitions according to an agreed-upon observation guide based on several literature reviews.
Science
They based their reports upon observations of patients and ex tensive studies of labratory ani mals.
News & Media
Illustration of a protoplanetary disk based upon observations from the Keck II telescope.
It should be based upon observations that have been repeatedly made by several individuals.
However, the investigator mentions the fact that Huntington's is hereditary and that Agnes may have recognized it in herself based upon observations of another symptomatic individual.
Academia
Expert writing Tips
Best practice
Use "upon observation" to introduce a conclusion or action that directly follows from a careful examination or study of something. It provides a formal tone to your writing and enhances clarity.
Common error
Avoid using "upon observation" in casual conversation or informal writing. It can sound overly formal or stilted in settings where simpler alternatives like "after seeing" or "based on what I saw" would be more appropriate.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "upon observation" functions as a prepositional phrase that modifies a verb or clause, indicating the basis for a judgment or action. Ludwig confirms its use in introducing conclusions derived from examined information.
Frequent in
Science
79%
Academia
9%
News & Media
7%
Less common in
Encyclopedias
3%
Wiki
2%
Formal & Business
0%
Ludwig's WRAP-UP
"Upon observation" is a prepositional phrase used to introduce a statement or conclusion derived from careful examination. Ludwig AI affirms its grammatical correctness and appropriateness for formal contexts. Predominantly found in scientific and academic writing, as well as news media, the phrase serves to highlight the empirical basis of a subsequent claim. While highly useful in formal settings, it should be used judiciously in informal contexts where simpler alternatives might be more appropriate. Alternatives include "based on observation" and "after observing".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
based on observation
Highlights the foundation of an idea or conclusion rooted in observation.
on observing
Focuses on the action of observing rather than the state after the observation.
from observation
Indicates that the observation is the origin or source of the information.
by observation
Highlights the act of observation as the method by which something is determined.
after observing
Emphasizes the temporal sequence of observing followed by a subsequent action or realization.
following observation
Similar to 'after observing' but slightly more formal.
through observation
Highlights how the process of observing helps in reaching a conclusion.
as observed
Passively describes something that has been seen or noticed.
having observed
Uses a perfect participle to indicate that the observation is complete before the next action.
observing that
Introduces a statement that presents the observation.
FAQs
How can I use "upon observation" in a sentence?
You can use "upon observation" to introduce a statement that is based on something you have seen or noticed, such as "Upon observation, the data revealed a significant increase in efficiency".
What are some alternatives to "upon observation"?
Alternatives to "upon observation" include "based on observation", "after observing", or "following observation". The best choice depends on the specific context.
Is "upon observation" formal or informal?
"Upon observation" is generally considered a formal phrase, more suitable for academic, scientific, or professional writing. In informal contexts, simpler alternatives are often preferred.
Which is correct, "upon observation" or "on observation"?
"Upon observation" is the more common and grammatically accepted form. While "on observation" might be understood, it is not as widely used or formally correct.
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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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested