Used and loved by millions
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
additional research is needed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "additional research is needed" is correct and usable in written English.
You can use it when you are emphasizing something requires more research before conclusions can be drawn or a further understanding can be reached. For example, "Based on these findings, additional research is needed to determine how effective this treatment is in the long-term."
✓ Grammatically correct
Science
News & Media
Alternative expressions(20)
Additional research is needed
further investigation is required
more study is necessary
further inquiry is warranted
further study is necessary
more investigation is required
additional research is required
additional research is warranted
greater research is needed
additional information is needed
additional investigation is needed
needs research is needed
future efforts will be
future studies will be
further study warranted
additional research needed
further investigation is justified
further inquiry is indicated
further investigation is warranted
Further investigation is warranted
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
Additional research is needed to more accurately determine the number of TTP cases that occur after Plavix use, experts said.
News & Media
Additional research is needed to better understand those factors.
Additional research is needed to confirm these preliminary findings.
Areas where additional research is needed are identified.
Additional research is needed to understand this phenomenon.
Additional research is needed to support the present study.
However, additional research is needed to verify its generality in China's urban redevelopment.
Science
Additional research is needed to identify better the risk factors for the occurrence of PUs.
Additional research is needed to evaluate Take Control directly against TDPs in a randomized trial.
Science
While prior investigation has established the preliminary psychometric properties of the DPQ, additional research is needed.
Science
Additional research is needed to determine how to maintain A. urbana.
Science
Expert writing Tips
Best practice
Combine "additional research is needed" with a concise summary of the current knowledge gap or limitation to emphasize the importance of further inquiry. For example, "While our findings suggest a correlation, additional research is needed to establish causality".
Common error
Avoid using "additional research is needed" without specifying the particular aspect or question that requires further investigation; be specific in defining the scope of the required research to prevent ambiguity and guide future work.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "additional research is needed" serves as a declarative statement indicating a requirement for further investigation or study. As Ludwig AI clarifies, it emphasizes that more research is necessary before definitive conclusions can be drawn.
Frequent in
Science
78%
News & Media
13%
Formal & Business
9%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "additional research is needed" is a grammatically sound and frequently used expression, particularly within scientific and academic writing. As Ludwig AI explains, it serves to emphasize the necessity for further investigation before definitive conclusions can be reached. Ludwig's examples highlight its common usage in scholarly articles and reports, where identifying areas for future study is crucial. While alternatives such as "further study is necessary" and "more investigation is required" exist, the original phrase remains a clear and effective way to call for continued inquiry. Remember to specify the area needing further research to ensure clarity and guide future efforts.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
Further investigation is required
Replaces "research" with "investigation" and "needed" with "required", emphasizing a more formal tone.
More study is necessary
Substitutes "research" with "study" and "needed" with "necessary", offering a slightly simpler and direct alternative.
Additional investigation should be conducted
Replaces "research" with "investigation", changes the verb to "should be conducted", suggesting a recommendation or call to action.
Further inquiry is warranted
Uses "inquiry" instead of "research" and "warranted" instead of "needed", conveying a sense of justification for further exploration.
More exploration is necessary
Replaces "research" with "exploration", suggesting a broader and less structured approach to investigation.
Future studies are required
Shifts the focus to "studies" as the subject, emphasizing the need for subsequent research projects.
Further data is required
Highlights the need for more data as a specific component of research, focusing on empirical evidence.
More analysis is needed
Emphasizes the need for deeper analysis of existing information rather than new research.
This area requires further research
Rephrases to focus on the "area" needing research, providing a slightly different sentence structure.
It is necessary to conduct further research
Adds an introductory phrase to emphasize the necessity of further research.
FAQs
How can I use "additional research is needed" in a sentence?
Use "additional research is needed" to highlight areas where current knowledge is insufficient. For example, "Additional research is needed to fully understand the long-term effects of this treatment".
What are some alternatives to saying "additional research is needed"?
You can use phrases like "further investigation is required", "more study is necessary", or "further inquiry is warranted" to convey a similar meaning.
Is it appropriate to use "additional research is needed" in formal writing?
Yes, "additional research is needed" is suitable for formal writing, particularly in academic and scientific contexts, to indicate the necessity of further investigation.
What's the difference between "additional research is needed" and "more research is needed"?
The phrases "additional research is needed" and "more research is needed" are largely interchangeable. Both indicate that further investigation is required, with a slight emphasis on the continuation of existing research in the case of "additional research is needed".
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
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