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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
a factual knowledge
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a factual knowledge" is not correct in standard English usage.
The correct expression would be "factual knowledge" without the article "a." Example: "Having factual knowledge about the subject is essential for making informed decisions."
⚠ May contain grammatical issues
Academia
Science
News & Media
Alternative expressions(16)
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
2 human-written examples
The Major exams test for (a) factual knowledge; (b) understanding of the limitations of the sources; and (c) mastery of pertinent secondary scholarship.
Academia
A factual knowledge test represented student' learning.
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
Learning outcomes were measured by means of a verbal factual knowledge test about the terminology and visuospatial details and a pictorial recognition test about the dynamic processes.
Science
The two tiers in two-tier items act together to uncover students' understanding of core concepts because the student must choose a seemingly "factual" knowledge response for the first tier (Taber and Tan 2011), and then choose for the second tier what reasoning about the concept they used to arrive at the first-tier response.
According to the key work How People Learn, "to develop competence in an area of inquiry, students must: (a) have a deep foundation of factual knowledge, (b) understand facts and ideas in the context of a conceptual framework, and (c) organize knowledge in ways that facilitate retrieval and application" (National Research Council [NRC], 2000, p. 16).
Science
Ordinarily, medical science courses take the form of lectures providing a mass of factual knowledge about the human body, illnesses, diagnoses and treatments in a short time.
To frame this according to modern research: "To develop competence…students must: (a) have a deep foundation of factual knowledge, (b) understand facts and ideas in the context of a conceptual framework, and (c) organize knowledge in ways that facilitate retrieval and application" [xii].
Academia
The balance was shifted to a functional curriculum in which the chief responsibility of one generation was to hand on a body of factual knowledge to the next.
News & Media
In practice, Lord Rothschild's writings provide no indication of his views, if any, on the philosophy of science;18 his repeated references to "common sense" suggest he might well have made fairly traditional assumptions about science as a purveyor of factual knowledge rather than the more subtle Popperian view of science as tested but provisional understanding.
Science & Research
Recently, there has been much concern in the professional risk community that opening the risk management arena to stakeholder input would lead to a dismissal of factual knowledge and to inefficient spending of public money (Sunstein 2002).
Students randomly assigned to using the problem-based online module on the differential diagnosis of chronic shortness of breath scored higher in a test of factual knowledge than students not included in the study despite comparable achievement levels before entering the study.
Expert writing Tips
Best practice
Avoid using the article "a" before the phrase "factual knowledge". The correct and standard usage is "factual knowledge".
Common error
A common mistake is to use the indefinite article "a" before "factual knowledge", likely influenced by similar constructions with countable nouns. However, "factual knowledge" is generally treated as a non-countable noun phrase and doesn't require an article. Always use "factual knowledge" without "a".
Source & Trust
84%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a factual knowledge" functions as a noun phrase, but it is grammatically incorrect. Ludwig identifies it as an error in standard English usage. The correct form is simply "factual knowledge" without the article.
Frequent in
Science
33%
Academia
33%
News & Media
33%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, while the intention behind using "a factual knowledge" is to refer to information grounded in facts, it's grammatically incorrect. Ludwig AI highlights that the correct form is simply "factual knowledge". Although found in some contexts such as academia, science, and news media, it's best to avoid the article "a" to maintain grammatical accuracy and formality. Alternatives such as "objective information" or "verifiable facts" can also be considered for varied expression.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
factual knowledge
Omits the article "a", correcting the grammatical error in the original phrase.
objective information
Replaces "knowledge" with "information" and "factual" with "objective", emphasizing the impartiality of the data.
verifiable facts
Focuses on the aspect of verifiability, highlighting that the knowledge can be checked for accuracy.
evidence-based understanding
Emphasizes that the understanding is based on evidence, indicating a deeper comprehension than mere factual recall.
confirmed data
Highlights that the data has been confirmed, suggesting reliability and accuracy.
established facts
Stresses that the facts are well-established, implying a consensus and a lack of dispute.
real-world knowledge
Emphasizes the practical application and relevance of the knowledge.
empirical data
Highlights that the knowledge is derived from observation or experiment, emphasizing a scientific approach.
validated information
Suggests that the information has been checked and confirmed as valid.
reliable data
Focuses on the reliability of the data, emphasizing its trustworthiness and consistency.
FAQs
How to use factual knowledge in a sentence?
Factual knowledge is used to describe information that is based on evidence and can be verified. For example, "A strong foundation of "factual knowledge" is crucial for success in many fields."
What can I say instead of "a factual knowledge"?
Since "a factual knowledge" is grammatically incorrect, use ""factual knowledge"" or alternatives like "objective information", or "verifiable facts".
Which is correct, "a factual knowledge" or factual knowledge?
"Factual knowledge" is correct. The inclusion of the article "a" before "factual knowledge" is grammatically incorrect in standard English.
What's the difference between factual knowledge and "real-world knowledge"?
"Factual knowledge" refers to knowledge based on verifiable facts. "Real-world knowledge" implies practical understanding and experience gained from actual situations, not just theoretical facts.
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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
84%
Authority and reliability
1.8/5
Expert rating
Real-world application tested