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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
main rationale behind
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "main rationale behind" is correct and usable in written English.
It can be used when explaining the primary reason or justification for a particular decision, action, or belief. Example: "The main rationale behind implementing the new policy is to improve employee productivity and satisfaction."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(20)
primary reason for
primary reason
underlying reason
principal motivation
chief reason
core explanation
underlying logic
fundamental basis
driving force
primary cause
main motivation behind
main principle behind
main reasons behind
main driver behind
main factor behind
main focus behind
main influence behind
main problem behind
main culprit behind
main strategist behind
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
11 human-written examples
But overall, the main rationale behind Fayyad's decision seems to be to save his own political skin.
News & Media
The main rationale behind the methodology is to keep the number of purification units in the final process to the minimum through a systematic cycle of flowsheet synthesis, optimization, evaluation and the rational elimination of the least feasible process options at each purification step, taking into account the specific needs of the purification step.
Science
HMMs proved to be effective machine learning tools for sequential and correlated data and this is the main rationale behind this study.
Science
As pointed out in Remark 3, the main rationale behind this approach is the need for avoiding coverage holes when network elements are deactivated.
The main rationale behind the increased use of biofuels is the reduction of total greenhouse gas (GHG) emissions, typically accounted in carbon footprints [5].
This confirms the main rationale behind the study: An early diagnosis and short delay between the first onset of symptoms and initiation of treatment correlates with substantially lower medical service utilization.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
49 human-written examples
"The main rationale was not based on intelligence," Feith said.
News & Media
This is due to three main reasons: The rationale behind predictions is that a higher sexual activity is linked with a higher SCR, but this is not directly demonstrated by this or by previous studies on the selected species.
Science
The main scientific bibliography addressing the rationale behind ecological compensation is reviewed in order to examine general guidelines.
But if Erbitux was shown to work on its own, it would undermine the rationale behind the main study, threatening approval of the drug.
News & Media
The article presents the rationale behind the Energy ADE, it describes its main characteristics, the relation to other standards, and provides some examples of current applications and case studies already adopting it.
Expert writing Tips
Best practice
When using "main rationale behind", ensure the context clearly establishes what decision, action, or belief is being justified. Providing specific details will strengthen your explanation.
Common error
Avoid using "rationale" in very informal settings where simpler words like "reason" or "explanation" would suffice. Overuse can make your writing sound pretentious.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "main rationale behind" functions as a connector, introducing the primary justification or reasoning for a particular decision, action, or belief. Ludwig AI confirms its usability in written English.
Frequent in
Science
4%
News & Media
3%
Formal & Business
1%
Less common in
Academia
1%
Unknown
1%
Unmatched
0%
Ludwig's WRAP-UP
In summary, the phrase "main rationale behind" is a grammatically sound and usable expression, as confirmed by Ludwig AI, serving to introduce the primary justification or reasoning for a decision or action. While categorized as "Uncommon" in frequency, its usage spans across diverse contexts like science, news, and formal business settings. The phrase is generally neutral to formal in tone, making it suitable for professional and academic discourse. When deploying "main rationale behind", ensure clarity by providing specific details regarding the decision, action, or belief being justified, and avoid overuse in very informal contexts where simpler terms might suffice.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
primary reason for
Focuses on the reason, omitting the justification aspect.
key justification for
Emphasizes the justification, potentially implying a formal defense.
principal motivation
Highlights the driving force or incentive.
chief reason
A more direct and simple substitution, lacking the nuance of 'rationale'.
core explanation
Emphasizes understanding and clarity of the reason.
central justification
Stresses the importance and centrality of the justification.
underlying logic
Focuses on the logical foundation supporting an action or decision.
fundamental basis
Highlights the foundational support or reason.
driving force
Similar to 'motivation', but implies a stronger sense of momentum.
primary cause
Directly points to the cause, lacking the intentional aspect of 'rationale'.
FAQs
How can I use "main rationale behind" in a sentence?
You can use "main rationale behind" to introduce the primary justification for a decision or action. For example, "The main rationale behind the new policy is to improve employee satisfaction".
What's a simple substitute for "main rationale behind"?
A simpler substitute for "main rationale behind" is "primary reason". It conveys the same meaning in a less formal way.
What is the difference between "main rationale behind" and "underlying reason"?
"Main rationale behind" suggests a more explicit justification, while "underlying reason" implies a less obvious or more fundamental cause.
Is it better to say "rationale for" or "rationale behind"?
Both "rationale for" and "rationale behind" are acceptable, but "rationale behind" is often used when explaining the reasoning or thought process that led to a decision.
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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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested