every fourth subject

USAGE SUMMARY

The phrase "every fourth subject" is correct and usable in written English.
It can be used when referring to a selection or sampling method where you choose every fourth item in a sequence. Example: "In the study, we surveyed every fourth subject to ensure a representative sample of the population."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

2 human-written examples

Those individuals scoring above this cut-off are at high risk with every fourth subject converting to AD within the observational period.

Plosone

Nearly every fourth subject (22.5%) reported having experienced strong pain.

BioMed Research International

Human-verified similar examples from authoritative sources

Similar Expressions

56 human-written examples

It is intriguing that around every second subject displaying abundant pathology did remain neurologically intact.

Acta Neuropathologica

In our study, only every sixth subject reported no pain complaints, what indirectly signals a risk of falling in that group of patients.

Clinical interventions in aging

The data confirm the high prevalence of PAD in primary care [ 28, 29], indicating that – at least – about every fifth subject aged ≥65 years, is a PAD patient.

BMC Public Health

Instead of using specific (Ramfjord) index teeth for periodontal measurements, a six-sites per tooth full-mouth recording is performed in randomly selected every tenth subject to calculate a sample-wide inflation factor.

BMC Oral Health

Every tenth subjects' assembled radiographs were independently interpreted by a non-affiliated radiologist blinded to the results of the first reading.

BMC Musculoskeletal Disorders

The fourth subject showed a 3.6-fold changing IgG level.

BMC Infectious Diseases

The addition of a fourth subject increased the sensitivities.

BMC Infectious Diseases

This means that the first set of body paragraphs is devoted to addressing every aspect of the first subject and the second set, to addressing every aspect of the second subject, making sure to address each aspect in the same order.

WikiHow

Ms. Apostolopoulou said the fiscal crisis was the first subject of every conversation she had with her friends.

The New York Times

Expert writing Tips

Best practice

When describing research methodologies or sampling techniques, use “every fourth subject” to clearly indicate a systematic selection process.

Common error

Avoid assuming that the behavior or characteristics observed in "every fourth subject" accurately represent the entire population without proper statistical validation.

Linguistic Context

The phrase "every fourth subject" functions as a determiner phrase specifying the frequency or interval of selecting subjects, typically in research or surveys. Ludwig AI confirms its usability in written English.

Expression frequency: Rare

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, the phrase "every fourth subject" is grammatically correct and functions to describe a systematic sampling method primarily used in scientific research. Ludwig AI validates its proper usage. While the phrase is relatively rare, it is essential for clearly communicating specific research methodologies. Alternatives include "every fourth participant" or "a quarter of the subjects", depending on the context. When writing, ensure the phrase is used accurately to reflect a consistent and methodical selection process.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

every 4th participant

Replaces "subject" with "participant", offering a more specific term depending on the context.

every fourth individual

Substitutes "subject" with "individual", providing a more neutral and general term.

every one in four subjects

Rephrases the original to emphasize the proportion being selected.

one subject out of every four

Inverts the phrase to highlight the single subject chosen from the group of four.

a quarter of the subjects

Expresses the same selection as a fraction of the whole group.

25 percent of the subjects

Conveys the proportion as a percentage of the entire group.

every fourth person

Replaces "subject" with "person", broadening the context beyond studies.

subjects selected at intervals of four

Describes the selection process in a more descriptive and technical manner.

systematic sampling with a sampling interval of four

Uses statistical terminology to define the selection method.

subjects chosen in a repeating pattern of four

Explains the selection as a repeating pattern to emphasize regularity.

FAQs

How can I use "every fourth subject" in a research context?

In research, "every fourth subject" indicates a systematic sampling method where researchers select every fourth individual from a list or population. This method is used to obtain a representative sample for analysis. For example: "We interviewed "every fourth subject" who entered the clinic to assess patient satisfaction".

What are some alternatives to saying "every fourth subject"?

Alternatives include phrases like "every fourth participant", "every fourth individual", or "a quarter of the subjects". The choice depends on the specific context and the desired level of formality.

Is it correct to say "every fourth subjects" instead of "every fourth subject"?

No, the correct phrase is "every fourth subject". The word "subject" should be singular because "every" implies a singular selection at each interval. Using the plural "subjects" would be grammatically incorrect in this context.

What is the difference between "every fourth subject" and "randomly selected subjects"?

"Every fourth subject" indicates a systematic sampling method, whereas "randomly selected subjects" implies that each subject is chosen entirely by chance. Systematic sampling ensures even distribution, while random selection aims for unbiased representation through chance.