their effectiveness is

USAGE SUMMARY

The phrase "their effectiveness is" is correct and usable in written English.
You can use it when discussing the impact or success of a particular method, strategy, or tool. Example: "In evaluating the new marketing strategy, we found that their effectiveness is significantly higher than previous approaches."

✓ Grammatically correct

Science

News & Media

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

What evidence of their effectiveness is there?

Independent

Evaluating their effectiveness is tricky.

The New York Times

But their effectiveness is already diminishing.

The New York Times

They can be intimidating and their effectiveness is questionable.

The Guardian

Whatever the particular intimidation tactics used, their effectiveness is indisputable.

The New York Times - Magazine

Their effectiveness is aided by opening or closing windows.

Encyclopedia Britannica

There are now some less invasive laser procedures, the authors write, but their effectiveness is doubtful.

The New York Times - Health

Why are GPs "put in the driving seat" when their effectiveness is the least scrutinised?

The Guardian - Opinion

They know that they don't know when their effectiveness is at an end.

The New York Times - Sports

The actors give sharp, emotionally persuasive performances, but their effectiveness is limited by the play's structure.

The New York Times

Middle-school intervention programs are so new that assessing their effectiveness is difficult.

The New York Times

Expert writing Tips

Best practice

When evaluating a strategy, use "their effectiveness is" to introduce a concise assessment based on measurable outcomes or observed impacts.

Common error

Avoid using "their effectiveness is" in contexts where empirical evidence is lacking or inconclusive. Instead, acknowledge uncertainties or limitations in the assessment.

Linguistic Context

The phrase "their effectiveness is" serves as a linking phrase that introduces an evaluation or assessment of the impact or success of a particular method, strategy, or tool. Ludwig provides numerous examples where the phrase is used to discuss the efficacy of various interventions and approaches.

Expression frequency: Very common

Frequent in

Science

46%

News & Media

40%

Encyclopedias

6%

Less common in

Formal & Business

2%

Reference

0%

Social Media

0%

Ludwig's WRAP-UP

In summary, the phrase "their effectiveness is" is a versatile expression used to evaluate the success or impact of various strategies and interventions. Ludwig AI confirms that the phrase is grammatically sound and widely employed across diverse contexts, including science, news media, and encyclopedias. When writing, using alternatives such as "its efficacy is" or "their impact is" can add nuance. It's important to avoid overstating claims and to acknowledge uncertainties if evidence is limited. By understanding these aspects, writers can effectively use the phrase to communicate evaluations in a clear and substantiated manner.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

its efficacy is

Focuses on the capacity to produce a desired effect, using a more formal term.

their impact is

Focuses on the effect or influence that something has on a particular situation or subject.

their efficiency is

Emphasizes the ratio of useful output to total input, highlighting resourcefulness.

how well they work is

Uses simpler language to question the operational success of something.

to what extent they are effective is

Emphasizes that it's a question about the range of results, using a more complex structure.

the degree of their success is

Highlights the extent to which something achieves its intended outcome.

the extent of their influence is

Focuses on the range and power of their effect on something else.

their value is

Highlights the importance or worth of something in achieving a desired result.

the level of their performance is

Highlights how well they execute or function in a specific task or role.

their utility is

Emphasizes the usefulness or practical application of something.

FAQs

How can I use "their effectiveness is" in a sentence?

You can use "their effectiveness is" to introduce a statement about the degree to which something achieves a desired result. For example, "In this study, "their effectiveness is" measured by the number of successful outcomes".

What are some alternatives to "their effectiveness is"?

Alternatives include phrases like "its efficacy is", "their impact is", or "how well they work is", depending on the nuance you want to convey.

Is it better to say "their effectiveness is high" or "they are highly effective"?

Both are grammatically correct, but "they are highly effective" places more emphasis on the subject's capability, while ""their effectiveness is" high" focuses on the degree of impact.

When should I question the use of "their effectiveness is"?

Question its use when you lack sufficient data or evidence to support a claim about the degree to which something is producing a desired result. In such cases, use phrases like "their effectiveness is unclear" or "their effectiveness is questionable".