control group

USAGE SUMMARY

The term "control group" is correct and usable in written English.
It is typically used when referring to an experimental setup in which a small group of subjects are given a standard treatment and monitored to provide a baseline for comparison. For example: "The research team conducted the experiment with two different types of medication, giving one to the treatment group and the other to the control group."

✓ Grammatically correct

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

They're our control group.

The New Yorker

The control group received visits, too.

The New York Times

Compare the results against a control group.

The New York Times

One control group received no contact whatsoever.

The New York Times

The control group showed almost no improvement.

The New York Times - Health

There was also no control group.

The New York Times - Science

*P<0.05 versus control group, #P<0.05 versus control group, ▵P<0.05 versus control group, ▲P<0.05 versus control group, ξP<0.05 versus control group, ☆P<0.05 versus control group, ★P<0.05 versus control group, **P<0.05 versus control group.

Nature

A control group received nothing.

The New York Times

##P < 0.01 versus control group.

Nature

normal control group.

AMB Express

No control group.

International Journal of Educational Technology in Higher Education

Expert writing Tips

Best practice

Use "control group" precisely. Ensure that the group truly serves as a baseline by not receiving the treatment or intervention being tested.

Common error

Don't assume the "control group" is simply a group that receives 'nothing'. In many studies, ethical considerations or practical constraints mean the "control group" receives a standard treatment or placebo, not necessarily the complete absence of any intervention.

Linguistic Context

The phrase "control group" functions as a noun phrase, typically acting as a subject or object in a sentence. It identifies a specific group in an experiment or study that is used as a standard for comparison. As Ludwig AI points out, this term is generally accepted and usable in written English.

Expression frequency: Very common

Frequent in

Science

69%

News & Media

31%

Formal & Business

0%

Less common in

Academia

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

The term "control group" is a frequently used and grammatically sound phrase, primarily found in scientific and news contexts. As Ludwig AI confirms, it's widely accepted in written English. It denotes a group in a study serving as a baseline for comparison, which is essential for reliable research. Alternative phrases like "comparison group" or "baseline group" can be used depending on the specific context. When using the term, ensure that the "control group" genuinely serves as a baseline and the description of how this group was constructed is clear.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

comparison group

Focuses on the act of comparing, rather than the element of control.

baseline group

Emphasizes the establishment of a starting point for measurement.

reference group

Highlights the role of the group as a point of reference.

untreated group

Specifies that the group receives no intervention, highlighting the lack of treatment.

placebo group

Implies the use of a placebo to blind participants.

sham group

Indicates a simulated or fake treatment.

standard group

Suggests a group that represents the norm or expected outcome.

naive group

Denotes a group that has not been previously exposed to the experimental conditions.

vehicle group

The control group is administered the solution the drug is delivered to, minus the drug itself.

non-intervention group

Highlights the absence of any active intervention or treatment.

FAQs

How is "control group" used in research?

In research, a "control group" is a standard for comparison. It doesn't receive the treatment or intervention being tested, allowing researchers to see if the treatment has a real effect. For example, in a drug trial, one group gets the drug, while the "control group" might get a placebo.

What is the difference between a "control group" and an experimental group?

The key difference is the intervention. The experimental group receives the treatment being tested, while the "control group" does not. Comparing the outcomes of both groups reveals whether the treatment had an effect.

What are some alternatives to "control group"?

Depending on the context, you can use alternatives like "comparison group", "baseline group", or "reference group". The best choice depends on the specific role the group plays in the study.

Why is having a "control group" important in an experiment?

A "control group" is essential because it helps isolate the effect of the treatment. Without it, you can't be sure if the observed changes are due to the treatment itself, or other factors. It helps ensure reliable results.