a valid surrogate

USAGE SUMMARY

The phrase "a valid surrogate" is correct and usable in written English.
It can be used in contexts where you are discussing a substitute or representative that is acceptable or legitimate, often in fields like research, statistics, or social sciences. Example: "In our study, we found that using a valid surrogate for the actual data improved the accuracy of our results."

✓ Grammatically correct

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

H MRS cannot selectively measure TGs in β-cells; nevertheless, we previously validated whole pancreas TG level as a valid surrogate for β-cells (32).

Diabetes Care

Technology-enabled abstraction of EHR improved data completeness and accuracy, and it should be seen as a valid reference standard, until further investigations validate the utilization of structured data as a valid surrogate.

Clinical Epidemiology

Fractional flow reserve (FFR) is a valid surrogate for hemodynamic significance in stenotic native coronary arteries, but its validity in patients with coronary stent restenosis is unknown.

Chest

"We accept LDL cholesterol as a valid surrogate," he said.

The New York Times

We argue that the rat uterus is not a valid surrogate for the human fallopian tube.

Regulatory Toxicology and Pharmacology

It is controversial whether proteinuria is a valid surrogate end point for randomized trials in chronic kidney disease.

American Journal of Kidney Diseases

We evaluate whether the readily available incidence of RBC transfusion can be used as a valid surrogate measure.

Journal of Clinical Anesthesia

The results of this study indicated that neither vascular plants nor any other taxonomic group is a valid surrogate in this nature reserve.

Journal for Nature Conservation

The progression of atherosclerosis, traditionally measured by angiography, is predictive of future clinical events and is a valid surrogate marker of cardiovascular (CV) disease.

Journal of the American College of Cardiology

This finding enables consideration of using infarct size as a valid surrogate outcome measure in assessing new STEMI treatments.

Duke University

Hence, in our model the use of the blink reflex enhancement as an endpoint following GTN infusion, represents a valid surrogate for human migraine pathophysiology.

The Journal of Headache and Pain

Expert writing Tips

Best practice

When using "a valid surrogate", clearly define the context in which the surrogate is considered valid. This helps avoid ambiguity and ensures your audience understands the limitations and scope of the substitution.

Common error

Avoid presenting "a valid surrogate" as a perfect substitute. Acknowledge any limitations or potential discrepancies between the surrogate and the original measure to maintain credibility and accuracy in your writing.

Linguistic Context

The phrase "a valid surrogate" functions primarily as an adjective-noun combination, where "valid" modifies "surrogate". It describes a substitute or proxy that is considered acceptable and legitimate for a particular purpose. Ludwig AI confirms the appropriateness of the expression in diverse contexts.

Expression frequency: Very common

Frequent in

Science

60%

Academia

20%

News & Media

10%

Less common in

Formal & Business

5%

Encyclopedias

3%

Wiki

2%

Ludwig's WRAP-UP

The phrase "a valid surrogate" is a common and grammatically correct expression used to describe a legitimate substitute or proxy, particularly in scientific and academic contexts. According to Ludwig AI, the phrase is appropriate in a variety of situations where direct measurement isn't feasible. When using "a valid surrogate", clearly define the context and acknowledge any limitations. Consider alternatives like "a legitimate substitute" or "an acceptable proxy" for nuanced communication. Remember to avoid overstating the surrogate's reliability to maintain credibility.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

a legitimate substitute

Replaces "valid" with "legitimate", emphasizing the lawfulness and acceptability of the substitution.

an acceptable proxy

Uses "proxy" to highlight the representation aspect and "acceptable" to denote suitability.

a reliable indicator

Shifts focus to the indication aspect, suggesting that the surrogate provides dependable information.

a sound replacement

Emphasizes the robustness and justification for the replacement.

a reasonable alternative

Highlights that the surrogate is a sensible and justifiable option.

a fitting stand-in

Implies the surrogate adequately fulfills the role of what it replaces.

an appropriate substitute

Suggests the surrogate is well-suited and fitting for the intended purpose.

a dependable measure

Focuses on the reliability and consistency of the surrogate as a measurement tool.

a representative metric

Highlights that the surrogate accurately reflects the characteristics of what it stands in for.

a credible equivalent

Emphasizes the believability and trustworthiness of the surrogate as being virtually equal.

FAQs

What does it mean to use "a valid surrogate" in research?

In research, using "a valid surrogate" means employing a measure or endpoint that reliably predicts or reflects a primary outcome when the primary outcome is difficult, costly, or time-consuming to assess directly. Its validity must be established through empirical evidence.

How can I determine if something is "a valid surrogate"?

To determine if something qualifies as "a valid surrogate", assess its correlation with the true endpoint, whether it captures a significant portion of the treatment effect, and if there is a clear and plausible mechanism linking the surrogate to the outcome of interest. Look for evidence in peer-reviewed studies.

What are some alternatives to "a valid surrogate"?

You can use alternatives like "a legitimate substitute", "an acceptable proxy", or "a reliable indicator" depending on the specific nuance you want to convey.

In what fields is the concept of "a valid surrogate" most commonly used?

The concept of "a valid surrogate" is most commonly used in fields like clinical trials, medical research, environmental science, and social sciences, where direct measurement of outcomes is often impractical or unethical.