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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
rationale behind why
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "rationale behind why" is correct and usable in written English.
You typically use the phrase "rationale behind why" when describing the justification or reasoning for a particular action or decision. For example: "We carefully considered the rationale behind why we decided to launch a new product line."
✓ Grammatically correct
News & Media
Science
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
3 human-written examples
"But there is some good rationale behind why some of those actions were taken".
News & Media
Guest writer Ashwin Ramasamy discusses the rationale behind why app development prices are soaring. .
News & Media
In this meta-analysis, detailed information was collected on both the content of intervention care and the content of 'usual' or 'standard' care provided to the control group (for the rationale behind why this is relevant, see de Bruin, Viechtbauer, Hospers, Schaalma, & Kok, 2009; Michie, Prestwich, & de Bruin, 2010).
Science
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
Nowhere does he mention the rationale behind centrism, or why moments of extreme polarisation are often short-lived.
News & Media
We provide the basic rationale behind pricing of externalities, discuss why simple Pigouvian tax rules that equate charges to marginal external costs are not optimal in 'second-best' settings, and discuss the conceptual link between congestion pricing and road capacity.
Science
They also encouraged thorough communication with patients about their plan of care and the rationale behind the plan, for example, why certain medications are being prescribed or the reasons for fasting before a medical test.
Science
The most important part of this process is finding your identity through what you do and how you think, and that is why I support the rationale behind the dreaded application essays, interviews, and process as a whole.
News & Media
Curators of lists can list apps, the reason and rationale behind their choice, any related links or tweets, and why they're qualified to make that selection.
News & Media
The rationale behind the study was to understand the concerns over why Hong Kong public school teachers have not been incorporating the flipped classroom model into their teaching and provide interventions that may be able to address these issues.
Though there's no official word on why the split is taking place, the rationale behind it must be a doozy.
News & Media
First, tell the students why you created this assignment, so they understand the rationale behind it (Felder, 2007).
Science
Expert writing Tips
Best practice
When using "rationale behind why", ensure clarity by specifying what the rationale is for. For instance, "The rationale behind why the company chose this strategy is..."
Common error
While grammatically correct, "rationale behind why" can be slightly redundant. Consider using just "rationale" or rephrasing to avoid the unnecessary repetition, like, "the rationale for this decision is..."
Source & Trust
87%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "rationale behind why" functions as a noun phrase that introduces an explanation or justification. Ludwig AI indicates that it is grammatically correct, though potentially redundant.
Frequent in
Science
33%
News & Media
33%
Formal & Business
33%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "rationale behind why" is grammatically correct but can be considered slightly redundant. Ludwig AI confirms its correctness and usability. While understandable in various contexts, including news, science, and formal communications, more concise alternatives like "rationale" or "reasoning" may improve clarity. The phrase serves primarily to explain the underlying reasons or justifications for actions or decisions. While its occurrence is relatively rare, when used, ensure you clearly articulate the 'what' and the 'why' to maintain precision and avoid unnecessary wordiness. By considering context and conciseness, you can effectively communicate the "rationale behind why" without sounding repetitive.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
reasoning behind why
Replaces "rationale" with "reasoning", emphasizing the thought process.
motivation behind why
Substitutes "rationale" with "motivation", highlighting the driving force.
premise behind why
Replaces "rationale" with "premise", stressing the foundational assumption.
logic behind why
Substitutes "rationale" with "logic", focusing on the logical justification.
principle behind why
Replaces "rationale" with "principle", emphasizing a fundamental belief or rule.
explanation behind why
Substitutes "rationale" with "explanation", highlighting the clarification aspect.
purpose behind why
Replaces "rationale" with "purpose", emphasizing the intended outcome or aim.
reasons behind why
Substitutes "rationale" with "reasons", simply indicating the multiple causes.
reason behind why
Replaces "rationale" with "reason", focusing on a singular cause or justification.
rationale behind is
This version is slightly incomplete and requires an object after "is".
FAQs
How can I use "rationale behind why" in a sentence?
You can use "rationale behind why" to explain the reasons for a decision or action. For example: "The rationale behind why we chose this approach is based on extensive research."
What's a good alternative to using "rationale behind why"?
Consider using shorter, more direct phrases such as "the reasoning for" or simply "the rationale for". This can make your writing more concise.
Is it grammatically correct to say "rationale behind why"?
Yes, it's grammatically correct, but "rationale" already implies "reason", so the "why" might be redundant. Using "rationale behind" or just "rationale" is often preferred.
What is the difference between "rationale behind why" and "reason for"?
"Rationale behind why" is more formal and detailed, referring to a complex set of reasons. "Reason for" is a more general and straightforward way to ask about the cause of something.
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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
4.1/5
Expert rating
Real-world application tested