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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
mark one answer
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "mark one answer" is correct and usable in written English.
It is typically used in the context of multiple-choice questions, instructing respondents to select one option from a list of answers. Example: "In the quiz, please mark one answer for each question to indicate your choice."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(2)
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
1 human-written examples
The great majority of questions were of closed type and offered specific answers, and respondents were asked to mark one answer per question only.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
Which route of drug administration you prefer most (please mark only one answer)?
(Consider that all drugs share the same efficacy and safety and please mark only one answer) 1. Via the mouth 2.
What is more important for a pharmaceutical treatment you are taking to treat/stop a headache attack (please mark only one answer)?
What is more important for a pharmaceutical treatment you are taking daily to make your headaches become more rare/scarce and less severe (please mark only one answer)?
(Please mark only one answer)." into reference category no/mild pain (no pain, mild pain, pain with stairs only, pain with walking and stairs) or moderate-severe pain (moderate occasional, moderate continuous or severe pain), a priori, as previously [ 18, 20, 22].
There are 40 in a set; 26 for the letters in the alphabet, 10 for numerals, three which are called "substitutes" and are really just ditto marks, and one "answering pennant".
News & Media
The analyses focus on those who did mark one of the three answers, and it should be noted that these three categories are mutually exclusive.
Science
Made a complete mark for more than one answer, c.
More than one answer could be marked.
Science
"Sensitive," is one answer.
News & Media
Expert writing Tips
Best practice
When using "mark one answer" in surveys or questionnaires, ensure that the instructions are clear and that the format visually reinforces the single-selection requirement to avoid respondent errors.
Common error
Avoid using similar but ambiguous phrases such as "mark all that apply" in the same document as it can confuse respondents. If both types of questions are needed, ensure questions are clearly grouped and headings clearly distinguish each question type.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "mark one answer" functions primarily as an instructional directive. Ludwig AI confirms its correct usage. It is commonly used in questionnaires and assessments to guide respondents on how to answer multiple-choice questions.
Frequent in
Science
35%
News & Media
33%
Formal & Business
32%
Less common in
Reference
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "mark one answer" is a common instructional phrase used primarily in questionnaires and assessments to direct respondents to choose a single option from a set of provided answers. Ludwig AI states that the phrase is correct and usable in written English. Its grammatical status is correct and the contexts in which it is primarily used include science, news and media, and formal and business settings. Alternative phrases like "select a single answer" or "choose one option" can be used for variety, but clarity should always be prioritized.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
select a single answer
Replaces "mark" with "select" and "one" with "single" for a slightly different phrasing with equivalent meaning.
choose one option
Substitutes "mark" with "choose" and "answer" with "option", offering a more general alternative.
indicate your choice
Uses a broader instruction focusing on indicating a choice, rather than specifically marking an answer.
pick only one
Offers a more concise and informal alternative, suitable for less formal contexts.
answer only one
Focuses on answering, emphasizing the act of providing an answer, but still limits to one.
respond with one selection
Uses "respond" and highlights that only one selection is acceptable, suitable for surveys and assessments.
make one selection only
Emphasizes the exclusivity of the selection, reinforcing that only one choice is permitted.
tick one box only
Specifies "tick" instead of "mark" and includes "box" to indicate the method of marking.
designate a single response
Employs more formal language with "designate" and "response", appropriate for academic or professional settings.
identify one answer
Replaces "mark" with "identify", shifting the focus to recognizing and indicating the correct answer.
FAQs
How can I rephrase "mark one answer" for variety?
You can use alternatives like "select a single answer", "choose one option", or "indicate your choice" depending on the context.
Is "mark one answer" suitable for all types of documents?
While generally acceptable, "mark one answer" is most appropriate for surveys, questionnaires, and assessments. For more formal documents, consider using phrases like "designate a single response".
What does "mark one answer" mean?
The phrase "mark one answer" instructs the respondent to select only one option from a list of provided choices. It is commonly used in multiple-choice questions to ensure a single, clear response.
What should I do if respondents "mark more than one answer"?
If respondents mark more than one answer when instructed to "mark one answer", the response is typically considered invalid for that question. Clear instructions and response validation mechanisms can help prevent this.
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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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested