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
similar effectiveness
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "similar effectiveness" is correct and usable in written English.
You can use it when comparing the effectiveness of two or more methods, products, or approaches that yield comparable results. Example: "Both treatments showed similar effectiveness in reducing symptoms, making either option viable for patients."
✓ Grammatically correct
Science
News & Media
Academia
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
60 human-written examples
Development of new treatment methods is being initiated with herbal medicine with similar effectiveness but less side effects [ 6].
The acid solutions (with solid solutes) all displayed similar effectiveness, and were all slightly more effective, on a per mole basis, than the DMMP solution (a liquid solute).
Science
Since all active treatment groups showed similar effectiveness, the question arises how the effects are mediated.
In previous comparison studies against Pfizer treatment Geodon, the drug showed similar effectiveness and a similar mix of side effects.
News & Media
Other initiatives, like Savvy Caregiver and REACH, have demonstrated similar effectiveness.
News & Media
If the Falcons can manage Jackson's time on the field with similar effectiveness, he could be a difference-maker come playoff time.
News & Media
Its economy is now dependent almost entirely upon tourism and it has found in its colonial heritage an equally valuable asset which it is exploiting with similar effectiveness.
News & Media
Two selection methods (roulette wheel and tournament), commonly used within genetic algorithms, exhibited similar effectiveness.
The results indicate that primary or secondary spherical aberration alone shows similar effectiveness in extending the DOF.
Science
Bevacizumab has been suggested to have similar effectiveness to ranibizumab for treatment of neovascular age-related macular degeneration.
Science
The two chemotherapy regimen showed a similar effectiveness in symptom palliation when evaluated with C30 addendum of EORTC QOL questionnaire.
Science
Expert writing Tips
Best practice
To ensure accuracy, always quantify or provide context for the degree of similarity in effectiveness when using the phrase "similar effectiveness".
Common error
Avoid using "similar effectiveness" when the actual difference in effectiveness is statistically significant or clinically meaningful. Instead, use more nuanced language to accurately reflect the distinction.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "similar effectiveness" functions as a descriptor, often used to compare the efficacy of two or more entities. This is supported by Ludwig examples where different treatments, methods, or drugs are assessed for their comparable results.
Frequent in
Science
69%
News & Media
17%
Academia
6%
Less common in
Wiki
2%
Formal & Business
0%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrase "similar effectiveness" is a common and grammatically correct way to express that two or more entities, such as treatments or methods, achieve comparable results. As Ludwig confirms, the phrase is usable in written English, particularly in scientific, news, and academic contexts. While alternatives like "comparable efficacy" or "equivalent effectiveness" exist, it's important to accurately represent the degree of similarity and consider other factors like cost or side effects when making comparisons. Avoid overstating the similarity if significant differences exist. With over 60 real-world examples, Ludwig illustrates the phrase's widespread use and reliability.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
comparable efficacy
Focuses on the medical or scientific term for effectiveness.
equivalent effectiveness
Emphasizes the equality in the level of effectiveness.
equal efficacy
A more concise way to express equivalent medical or scientific effectiveness.
comparable results
Highlights that the outcomes achieved are nearly the same.
analogous performance
Suggests the performance levels are similar or parallel.
matching impact
Emphasizes that the effects or influence produced are closely aligned.
near identical outcome
Focuses on the similarity of the final results or consequences.
virtually the same effect
Highlights that the effects are nearly indistinguishable.
consistent level of success
Indicates that the degree of success remains stable and alike.
uniform performance
Highlights that the consistency of the performance is the key.
FAQs
How can I use "similar effectiveness" in a sentence?
You can use "similar effectiveness" to compare the results or impact of different methods or products. For example: "Both treatments showed "similar effectiveness" in reducing symptoms, making either option viable for patients."
What are some alternatives to saying "similar effectiveness"?
Depending on the context, you can use alternatives like "comparable efficacy", "equivalent effectiveness", or "comparable results".
Is it better to say "similar effectiveness" or "equal effectiveness"?
Both are acceptable, but ""similar effectiveness"" implies a close but not necessarily identical level of efficacy, while "equal effectiveness" suggests they are the same.
When is it inappropriate to use the phrase "similar effectiveness"?
Avoid using ""similar effectiveness"" if there are significant differences in cost, side effects, or other relevant factors, even if the primary outcome is comparable. In these cases you need to mention any other relevant factor, even if the primary outcome is comparable.
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