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
in earlier studies
Grammar usage guide and real-world examplesUSAGE SUMMARY
"in earlier studies" is a correct and usable phrase in written English.
You can use it to refer to previously conducted research on a given topic. For example, "In earlier studies, it was found that the health benefits of exercising regularly are significant."
✓ Grammatically correct
Science
News & Media
Alternative expressions(16)
prior research
in recent studies
In previous research
The literature suggests
in above mentioned studies
in further studies
in preceding studies
in foregoing studies
in pervious studies
in successive studies
in previous studies
in early studies
in aforementioned studies
in ex ante studies
in antecedent studies
in earlier stages
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
These results are significantly consistent with the findings provided in earlier studies for Nigeria [33 35].
The scientists have noted other benefits in earlier studies.
News & Media
In earlier studies, thermal responses have been seen to be sluggish.
Science & Research
In earlier studies on herbivores, Tb or Tr fluctuations decreased with decreasing average Ta 10,11.
Science & Research
This kind of temporal behavior is also observed in HILDCAAs in earlier studies.
Science
Thus, the method employed here is different from the methods used in earlier studies.
Science
The results are compared with those obtained in earlier studies using different assumptions and calculation procedures.
Science
First, the Ethernet traffic is much higher than the traffic measured in earlier studies.
Reduced PME and elevated PDE reported in earlier studies were not replicated in several subsequent studies.
A non-linear system model, developed in earlier studies, was used in this model-based design.
Science
A Large Eddy Simulation (LES) approach was adopted, validated for both load conditions in earlier studies.
Expert writing Tips
Best practice
When using "in earlier studies", ensure you cite the specific studies you are referring to, providing context and credibility to your claims.
Common error
Avoid using "in earlier studies" without providing specific citations or context. Readers need to know which studies you are referring to in order to evaluate your claims effectively.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "in earlier studies" functions as a prepositional phrase used to introduce and contextualize information previously established by other researchers. Ludwig AI indicates the expression is considered grammatically correct and usable in written English.
Frequent in
Science
73%
News & Media
23%
Formal & Business
3%
Less common in
Academia
1%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "in earlier studies" is a commonly used prepositional phrase to cite previously conducted research. As Ludwig AI confirms, the phrase is grammatically correct and widely accepted, particularly within scientific and academic writing. When incorporating "in earlier studies" into your writing, remember to provide specific citations to maintain clarity and enhance credibility. While variations exist, such as "prior research", the core purpose remains consistent: to connect current findings to existing knowledge and establish a foundation for new insights.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
In previous research
Uses 'previous' instead of 'earlier', implying a chronological order of studies.
Prior studies have shown
This alternative uses an active voice and slightly alters the sentence structure.
Earlier research indicates
Replaces 'studies' with 'research' and uses 'indicates' for a slightly different nuance.
As demonstrated in prior work
Emphasizes the demonstration of findings in previous studies, sounding slightly more formal.
Prior investigations revealed
Uses 'investigations' instead of 'studies' and 'revealed' to highlight the uncovering of information.
Other studies suggest
Shifts focus to what other studies suggest, implying a comparison or contrast.
The literature suggests
Generalizes the reference to the entire body of literature on the topic.
Past research has indicated
Similar to 'in previous research' but uses a different verb tense and wording.
Earlier analyses have found
Uses 'analyses' to focus on the analytical aspect of prior work and replaces 'showed' with 'revealed'.
Previous experiments suggest
Specifies 'experiments' to highlight a particular type of study.
FAQs
How can I use "in earlier studies" in a sentence?
You can use "in earlier studies" to introduce information or findings that have been previously documented. For example, "In earlier studies, it was found that regular exercise improves cardiovascular health."
What's a formal alternative to "in earlier studies"?
A more formal alternative is "prior research", which is suitable for academic or professional writing.
Is "in earlier study" grammatically correct?
While "in earlier studies" is the standard plural form, "in an earlier study" is correct when referring to a single study. Avoid "in earlier study", as it is grammatically incorrect.
What is the difference between "in earlier studies" and "in recent studies"?
"In earlier studies" refers to research conducted further in the past, while "in recent studies" refers to more current or contemporary research.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested