Guide Sources and external links · 4 of 6
How to Cite Statistics Without Losing Their Context
Cite statistics with their sample, period, units, and source. Check subgroup numbers and percentage changes before turning a figure into a blog claim.
Key takeaways
- Keep the group and denominator with the number.
- Separate collection dates from release dates.
- Recalculate derived figures and label sample data.
To cite statistics accurately, keep the number connected to its group, time period, unit, and source. Check what the denominator includes before using a percentage. A short blog sentence can be clear without hiding those limits. The reliable-sources guide covers the wider selection process; this guide checks the meaning of a number you plan to use.
Write the claim before choosing the figure
Name what you need the number to show. Is it a count of users, a share of respondents, or a rate per task? A number from the same industry may still answer the wrong question. Do not choose the largest percentage first and build a claim around it.
Keep the purpose tied to the reader’s task. A service guide may need the share of a right group that reported a problem. It does not need a broad market total just because the total sounds impressive. Choose the figure for the question it can actually answer.
Find the table or passage behind the number
Follow the citation to the original producer or dataset where possible. Note the title, producer, version, and exact table or section. NYU’s data-citation guide identifies creator, release date, title, publisher, link, and access date as useful citation details. Keep enough of that record to find the value again.
A list of marketing statistics can be a lead to the source, not a substitute for reading it. If a link fails or opens a changed page, use the external-link audit to check the route. Do not keep the number merely because several blogs repeat it.
Check the group and the denominator
For a percentage, ask “out of what?” A share of all customers differs from a share of people who answered one question. A share of businesses differs from a share of their staff. Write the group in plain words before deciding how to use the figure.
Check exclusions and missing responses. A source may omit people who did not answer or cases that did not meet a rule. Preserve any limit that changes the meaning. The smallest necessary context should stay near the number rather than be hidden in a long source list.
Cite statistics with the right dates
Record when the data were collected or measured, as well as when the report was released. A page updated this month may still present an older survey. Do not call the number current simply because the website has a recent footer or revision date.
Choose wording that matches the period. A historical figure can be useful when you label it as historical. If you need a current claim, look for current data or state that the evidence is limited. Do not change the date in the sentence without checking the underlying source.
Keep units and definitions intact
A count of sessions is not a count of people. Revenue, bookings, and inquiries are different measures. A median is not an average, and a stated intention is not a completed action. Use the source’s definition or explain how your derived measure differs.
For a research result, review the method and sample with the study-citation workflow. This article focuses on the number in your sentence. It does not replace checking whether the study’s design supports the broader conclusion you want to make.
Example: a subgroup changes the meaning
Imagine a fictional survey with 200 respondents. Forty report using a planning sheet, so the share is 20%. In one subgroup of 50 respondents, 25 use a sheet, so that subgroup’s share is 50%. These invented values illustrate denominators, not a real market result.
“Half of all respondents use a sheet” would be wrong. The 50% value applies only to the subgroup. A useful sentence names that group and its size. Keep the overall count separate so the reader does not mistake the subgroup for the whole sample.
Distinguish percentage points from relative change
Suppose a fictional rate rises from 10% to 13%. That is a rise of three percentage points. Relative to the starting rate, it is a 30% increase. Both calculations can be correct, but they describe the movement differently. Label the measure rather than choosing the larger-looking number.
Recalculate any figure you derive from a source. Check the rounding and keep the inputs in the working note. Do not add decimal places that imply more precision than the data support. A clear approximate statement may be more honest than a long string of digits.
Resolve unlike numbers before comparing them
If two sources give different values, check the dates, groups, questions, and definitions first. They may measure different things. Use the conflicting-source review when the difference still matters. Do not average unlike figures merely to produce one convenient answer.
If the evidence is not comparable, say what each value describes or omit the comparison. A blog does not need a single neat statistic for every topic. A bounded statement is more useful than a false point of agreement between incompatible sources.
Make the citation usable in a short article
Keep a descriptive source link near the number and add the needed date or scope in the sentence. Give the reader a route to the exact report or data, not just the organization’s homepage. A source list can preserve extra details without carrying the whole burden of attribution.
Use the company-blog citation policy to decide how the team records tables, access dates, and derived calculations. DEX supports research and review in the content workflow. A drafted number or citation still needs a source check; it is not proof that the value was checked.
Use one final number check
Read the sentence without its link. Can you tell who or what the number describes, when it applies, and what it counts? Then open the source and find the same value. Check the unit and the base group. If you cannot make that match, keep the claim open for review.
For a number you worked out, write the inputs beside the result. In the sample, 40 divided by 200 gives 20%. In the subgroup, 25 divided by 50 gives 50%. Keep those pairs together. Do not let a neat percentage hide which people were counted.
Recheck the number after editing
A later rewrite can drop a word such as “respondents” or “among users” and broaden the claim by accident. Review the final sentence against the source note. Check captions and charts too if they repeat the same number. All versions should describe the same measure.
Finish with a number the reader can understand and trace. If the sample, period, or unit cannot be established, narrow the claim or leave the number out. The goal is useful evidence, not a quota of statistics per article.
FAQ
Can two percentages use different denominators?
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Yes. Check the underlying groups before comparing them.
Is a recent page date the data date?
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Not necessarily. Find when the data were collected or measured.
Should a precise number be quoted without its limits?
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No. Preserve the limits needed to understand what the number describes.
Sources
- Citing data and statistics · New York University
- DOI display guidelines · Crossref