Write a data availability statement that tells a future reader what exists, where it is, and what may responsibly be accessed
A data availability statement is a compact map between a published claim and the material needed to inspect, reproduce or extend it. English matters because phrases such as “available on request” or “data are public” are not enough unless the reader can identify the dataset, location, version, access conditions and lawful limits.
Choose the route closest to your task, or read straight through for the complete system.
Searches for data availability statement example, how to write a data sharing statement and data available on request often produce one-line templates. A responsible statement begins earlier: define which data underlie which results, what documentation and code are necessary, who controls them, and whether consent, privacy, licences, security or community governance limit release.
Availability is not binary. Data may be openly downloadable, deposited under managed access, available after an embargo, obtainable through a data-use agreement, retained by a third party, embedded in the article or not shareable for a documented reason. The wording should describe the actual route, not the route the authors hope to create later.
A useful statement supports people and systems. It names a repository and persistent identifier, uses stable dataset titles and version dates, identifies file documentation, links code where relevant and explains whom to contact. It also separates data from materials, protocols, code and confidential records.
This article is educational guidance, not legal, ethics, privacy, security or records advice. Follow the live journal, funder, institution, consent, repository and jurisdictional requirements that apply to the project.
Did You Know? The NIH Data Management and Sharing Policy took effect on 25 January 2023 and expects applicable researchers to plan and budget for managing and sharing scientific data. It also recognises that legal, ethical and technical factors can justify limits. Good transparency therefore includes both access and a precise explanation of responsible restriction.
Find the section you need
Map the evidence · 2 chapters
Choose access · 2 chapters
Write the identifiers · 2 chapters
Explain restrictions · 2 chapters
The statement should cover data necessary to interpret and verify reported findings, not an undefined archive.
Map every table, figure and key claim to datasets, derived files, codebooks and analysis inputs.
A paper using survey responses and administrative records may need a de-identified analytic file, variable dictionary and provenance note.
What to check
- Trace figures
- List raw sources
- List derived files
- Name documentation
Create a four-column note for chapter 1, “Define what counts as the supporting data”: controlling words, evidence or source, decision affected, and boundary. Keep quotation, paraphrase, inference and planned action visibly separate.
Explain the same point to a careful reader outside the discipline. Preserve the audience, date, method, authority, uncertainty and exception. If simplification changes what the evidence permits, restore the missing condition.
Boundary: Do not promise release of data the team does not control.
Learning transfer: Evidence mapping strengthens assignments and reports.
Write one sentence that states the evidence, one that states its limit, and one that states the next responsible action. Then test each noun, number, condition and source against the controlled document. Replace vague confidence with a traceable reason.
Different research objects have different repositories, licences and access risks.
Name each object class and describe its role rather than using “data” as a container for everything.
Interview transcripts, a survey instrument, analysis script and preregistration record may follow four different routes.
What to check
- Classify object
- Choose repository
- Check licence
- Link relationship
Create a four-column note for chapter 2, “Separate data, code, materials and protocols”: controlling words, evidence or source, decision affected, and boundary. Keep quotation, paraphrase, inference and planned action visibly separate.
Explain the same point to a careful reader outside the discipline. Preserve the audience, date, method, authority, uncertainty and exception. If simplification changes what the evidence permits, restore the missing condition.
Boundary: One item’s availability does not imply that all research materials are public.
Learning transfer: Classification supports digital organisation.
Write one sentence that states the evidence, one that states its limit, and one that states the next responsible action. Then test each noun, number, condition and source against the controlled document. Replace vague confidence with a traceable reason.
Open sharing is valuable when lawful and ethical; managed access can protect participants and communities.
Decide among open deposit, controlled repository, application route, embargo, third-party access or justified non-sharing.
Sensitive health data may require an approved researcher, secure environment and data-use agreement rather than a public download.
What to check
- Check consent
- Check ethics approval
- Check law
- Check community terms
Create a four-column note for chapter 3, “Choose an access model that matches governance”: controlling words, evidence or source, decision affected, and boundary. Keep quotation, paraphrase, inference and planned action visibly separate.
Explain the same point to a careful reader outside the discipline. Preserve the audience, date, method, authority, uncertainty and exception. If simplification changes what the evidence permits, restore the missing condition.
Boundary: De-identification may not remove every re-identification risk.
Learning transfer: Responsible access balances openness and care.
Write one sentence that states the evidence, one that states its limit, and one that states the next responsible action. Then test each noun, number, condition and source against the controlled document. Replace vague confidence with a traceable reason.
Personal webpages and temporary drives are fragile and difficult to cite.
Choose a repository suited to the discipline and data type, deposit the correct version and record DOI or another persistent identifier.
A dataset DOI can connect the article to an immutable landing page while allowing transparent version history.
What to check
- Name repository
- Record DOI
- Check version
- Test landing page
Create a four-column note for chapter 4, “Use a repository and persistent identifier”: controlling words, evidence or source, decision affected, and boundary. Keep quotation, paraphrase, inference and planned action visibly separate.
Explain the same point to a careful reader outside the discipline. Preserve the audience, date, method, authority, uncertainty and exception. If simplification changes what the evidence permits, restore the missing condition.
Boundary: A DOI points to a record; it does not prove documentation quality or unrestricted access.
Learning transfer: Persistent identity improves source checking.
Write one sentence that states the evidence, one that states its limit, and one that states the next responsible action. Then test each noun, number, condition and source against the controlled document. Replace vague confidence with a traceable reason.
Readers need to know whether the linked object is the one used in the analysis.
State dataset title, creator, collection or coverage period, release or version, and relationship to the article.
“Dataset v2.1, released 4 October 2026, contains the cleaned variables used for Tables 1–4.”
What to check
- Name title
- Add version
- Add date
- Map outputs
Create a four-column note for chapter 5, “Describe the dataset precisely”: controlling words, evidence or source, decision affected, and boundary. Keep quotation, paraphrase, inference and planned action visibly separate.
Explain the same point to a careful reader outside the discipline. Preserve the audience, date, method, authority, uncertainty and exception. If simplification changes what the evidence permits, restore the missing condition.
Boundary: Avoid exposing participant identities or confidential metadata in the description.
Learning transfer: Precise labels support teamwork.
Write one sentence that states the evidence, one that states its limit, and one that states the next responsible action. Then test each noun, number, condition and source against the controlled document. Replace vague confidence with a traceable reason.
6. Explain restrictions without using privacy as a slogan
Back to contentsA restriction should identify the governing reason and available route.
State whether limits arise from consent, law, contract, licence, Indigenous or community governance, security or third-party ownership; explain the request process.
“Not publicly available because consent did not include open release; qualified researchers may apply to the data custodian under…” is more useful than “confidential”.
What to check
- Name reason
- Name authority
- Name custodian
- Describe route
Create a four-column note for chapter 6, “Explain restrictions without using privacy as a slogan”: controlling words, evidence or source, decision affected, and boundary. Keep quotation, paraphrase, inference and planned action visibly separate.
Explain the same point to a careful reader outside the discipline. Preserve the audience, date, method, authority, uncertainty and exception. If simplification changes what the evidence permits, restore the missing condition.
Boundary: Do not promise that every request will be approved.
Learning transfer: Clear constraints help readers plan responsibly.
Write one sentence that states the evidence, one that states its limit, and one that states the next responsible action. Then test each noun, number, condition and source against the controlled document. Replace vague confidence with a traceable reason.
7. Write an honest “available on request” route
Back to contentsOn-request access can fail when criteria, owner and timing are absent.
Name the data holder, eligible requesters, required proposal or agreement, review body, conditions and contact.
A request may require ethics approval, a data-use plan and institutional signature before secure access.
What to check
- Name contact
- State criteria
- Explain review
- State limits
Create a four-column note for chapter 7, “Write an honest “available on request” route”: controlling words, evidence or source, decision affected, and boundary. Keep quotation, paraphrase, inference and planned action visibly separate.
Explain the same point to a careful reader outside the discipline. Preserve the audience, date, method, authority, uncertainty and exception. If simplification changes what the evidence permits, restore the missing condition.
Boundary: Use a durable institutional contact where possible and avoid implying unconditional access.
Learning transfer: Process writing supports applications.
Write one sentence that states the evidence, one that states its limit, and one that states the next responsible action. Then test each noun, number, condition and source against the controlled document. Replace vague confidence with a traceable reason.
Authors may analyse data they are permitted to use but not redistribute.
Name the third party, access route, licence or application, and whether the authors had any special privileges.
A commercial database can be cited with provider details and normal application route without uploading licensed records.
What to check
- Identify owner
- Cite source
- Describe normal access
- Disclose privileges
Create a four-column note for chapter 8, “Handle third-party data and licences”: controlling words, evidence or source, decision affected, and boundary. Keep quotation, paraphrase, inference and planned action visibly separate.
Explain the same point to a careful reader outside the discipline. Preserve the audience, date, method, authority, uncertainty and exception. If simplification changes what the evidence permits, restore the missing condition.
Boundary: Do not reproduce or share data beyond contractual rights.
Learning transfer: Licence literacy supports responsible media use.
Write one sentence that states the evidence, one that states its limit, and one that states the next responsible action. Then test each noun, number, condition and source against the controlled document. Replace vague confidence with a traceable reason.
9. Connect code, documentation and computational environment
Back to contentsData alone may be insufficient to reproduce a result.
Link scripts, notebooks, software versions, workflows, codebook and README; state which outputs they generate.
A repository release pairs the analytic file with an environment lockfile and script that rebuilds the main tables.
What to check
- Link code
- Name version
- Add README
- Test workflow
Create a four-column note for chapter 9, “Connect code, documentation and computational environment”: controlling words, evidence or source, decision affected, and boundary. Keep quotation, paraphrase, inference and planned action visibly separate.
Explain the same point to a careful reader outside the discipline. Preserve the audience, date, method, authority, uncertainty and exception. If simplification changes what the evidence permits, restore the missing condition.
Boundary: Reproducibility can still be limited by proprietary software, hardware or protected data.
Learning transfer: Procedural clarity improves STEM learning.
Write one sentence that states the evidence, one that states its limit, and one that states the next responsible action. Then test each noun, number, condition and source against the controlled document. Replace vague confidence with a traceable reason.
10. Coordinate embargoes and publication timing
Back to contentsA statement should work when the article becomes public.
Record deposit state, embargo end, reviewer access and final identifier; update placeholders before acceptance.
“DOI to be added” in a draft must become a functioning link in the version of record.
What to check
- Check deposit
- Check embargo
- Test reviewer route
- Remove placeholders
Create a four-column note for chapter 10, “Coordinate embargoes and publication timing”: controlling words, evidence or source, decision affected, and boundary. Keep quotation, paraphrase, inference and planned action visibly separate.
Explain the same point to a careful reader outside the discipline. Preserve the audience, date, method, authority, uncertainty and exception. If simplification changes what the evidence permits, restore the missing condition.
Boundary: Repositories and journals may expose records at different times.
Learning transfer: Timing control supports launches and submissions.
Write one sentence that states the evidence, one that states its limit, and one that states the next responsible action. Then test each noun, number, condition and source against the controlled document. Replace vague confidence with a traceable reason.
11. Test the statement as an independent reader
Back to contentsA grammatically correct statement can still lead nowhere.
Ask a reader outside the team to locate the record, identify the version, understand restrictions and find documentation without private knowledge.
A broken DOI, unexplained acronym or missing request criteria becomes visible immediately.
What to check
- Open every link
- Check version
- Read as outsider
- Record maintenance owner
Create a four-column note for chapter 11, “Test the statement as an independent reader”: controlling words, evidence or source, decision affected, and boundary. Keep quotation, paraphrase, inference and planned action visibly separate.
Explain the same point to a careful reader outside the discipline. Preserve the audience, date, method, authority, uncertainty and exception. If simplification changes what the evidence permits, restore the missing condition.
Boundary: Future link or contact changes require maintenance under the repository and journal process.
Learning transfer: User testing improves all instructions.
Write one sentence that states the evidence, one that states its limit, and one that states the next responsible action. Then test each noun, number, condition and source against the controlled document. Replace vague confidence with a traceable reason.
How to build this kind of English before the job title arrives
Back to contentsStudents do not need professional authority to practise the underlying language. They can learn to define scope, annotate conditions, compare versions, rebuild a timeline, match a number to its unit and explain uncertainty without embarrassment. Parents can ask calm questions: What decision is this document supporting? Which sentence carries the strongest claim? What would make that claim false? Which source would you open next?
Use a three-pass routine. First, map the document: title, owner, audience, date, sections and decision. Second, trace one claim from source to conclusion. Third, explain the limit and next action. This routine strengthens comprehension, science, mathematics, humanities and workplace readiness because it turns English into an evidence tool.
A student should never imitate professional authority. The useful goal is to recognise when a text needs a qualified reviewer, current rule or official decision. Knowing when to pause is part of literacy.
Weak version
“Data are available from the authors upon reasonable request.”
Open component
The de-identified aggregate dataset and analysis code are deposited in a named repository with DOI and version.
Restricted component
Interview transcripts are not public because consent did not cover open release; eligible researchers may apply to the institutional custodian under stated review and agreement conditions.
Verification
The team tests both the DOI and request contact, and ensures the statement matches consent, ethics approval and repository record.
What
Which data, code, materials and documentation exist?
Where
Which repository or custodian holds them?
Identity
What title, DOI, accession and version identify them?
When
Are they available now or after an embargo?
Who
Who may access and who decides?
How
What application, agreement or secure route applies?
Why restricted
Which lawful, ethical, contractual or governance reason controls?
Maintenance
Who checks links and future updates?
For each case, identify the tempting shortcut, the evidence that should control the sentence and the repair that keeps the claim useful.
The empty promise
“Available on request” becomes a real custodian, eligibility rule, application, agreement, contact and limitation.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
The wrong version
A repository link opens an earlier dataset. The team deposits a versioned release and maps it to the article’s tables and code.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
The privacy slogan
“Cannot share for privacy” becomes a precise consent and governance explanation plus a lawful managed-access route.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
The licensed source
Authors cannot redistribute third-party data. They cite the provider, normal access route and absence of special privileges.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
A parent, tutor, supervisor or peer can ask for the source and reasoning, but the learner should make the final evidence note in their own words.
Use the live source where possible. Preserve source wording, interpretation, version and decision separately.
Map claims to objects
Connect tables and figures to data, code and documentation.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
Classify access
Choose open, managed, embargoed, third-party or restricted routes.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
Create stable identity
Use repository title, identifier, version and date.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
Explain conditions
Name custodian, eligibility, review and agreement.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
Test as an outsider
Open every link and follow the route without private knowledge.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
Finish with three lines: what is supported, what remains uncertain and what evidence or action comes next.
The evidence should stay stable even when emphasis, detail and next action change with the reader.
Author lens
A precise map reduces future confusion.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
Participant lens
Access must honour consent and privacy.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
Reader lens
Identity and documentation enable verification.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
Custodian lens
Managed access needs a governable process.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
Future researcher lens
Stable versions support responsible reuse.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
Adaptation is useful only when the shortened version preserves status, evidence, uncertainty and boundary.
A polished paragraph can conceal a missing source, version, condition or decision route. Run these tests before relying on fluency.
Object test
List data, code, documentation, instrument, protocol and materials separately. Confirm that each noun in the statement refers to a real controlled object.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
Access test
Follow the route as an eligible outsider: open the record, find the version, locate instructions and identify the responsible custodian.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
Restriction test
Replace broad words such as confidential or sensitive with the exact governing reason, authority, affected files and lawful access route.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
Future-contact test
Prefer durable repository and institutional contacts, then record who will maintain the statement if staff, systems or links change.
Record the controlling source, current date or version, people affected, decision owner and uncertainty. Then write the smallest conclusion that remains accurate if one assumption or document changes.
Keep the failed test beside the revision. The comparison teaches more than a corrected sentence alone because it shows exactly where language outran evidence.
Answer each question in a complete sentence tied to a source, date, observation or authorised clarification. Write “unknown” where the record does not support an answer.
- Which data support each claim? Record the evidence and the conclusion it permits.
- Which code and documentation are needed? Record the evidence and the conclusion it permits.
- Who controls each object? Record the evidence and the conclusion it permits.
- Which repository holds it? Record the evidence and the conclusion it permits.
- What persistent identifier applies? Record the evidence and the conclusion it permits.
- Which version was used? Record the evidence and the conclusion it permits.
- Is access open or managed? Record the evidence and the conclusion it permits.
- What restriction governs? Record the evidence and the conclusion it permits.
- Who may request access? Record the evidence and the conclusion it permits.
- What process applies? Record the evidence and the conclusion it permits.
- Do third-party rights limit release? Record the evidence and the conclusion it permits.
- Do all links and contacts work? Record the evidence and the conclusion it permits.
Independent-reader test
Give the record to a careful reader who was not present. Ask them to identify the source, version, reasoning, uncertainty and next action without extra explanation. Repair a missing link rather than adding decorative formality.
Change test
Imagine that a policy, dataset, review, journal page or manuscript version changes tomorrow. Mark every sentence that would need updating. This makes cycle-sensitive claims visible and prevents an old note from controlling a new decision.
Parent or mentor conversation
Ask three calm questions: Which words carry the strongest claim? What evidence controls those words? What condition would make you revise the conclusion? The goal is not to supply an answer but to model accountable curiosity.
Must all research data be public?
No. Openness depends on consent, law, ethics, contracts, security, community governance and funder or journal policy. Explain responsible limits precisely.
What is a data availability statement?
A concise account of what supporting data exist, where they can be found, and any access conditions or restrictions.
Can I write “available on request”?
Only if a real, governed request route exists. Name the custodian, criteria, process and limits.
Should code be included?
When code is needed to understand or reproduce results, link and version it or explain any restriction.
What if data belong to a third party?
Name the owner and normal access route, cite the source and state whether the authors had special privileges.
When should I write the statement?
Plan it during research design and data management, then verify it before submission, acceptance and publication.
- NIH — Data Management and Sharing Policy
- Nature Portfolio — Availability of Data, Materials, Code and Protocols
- FAIR Principles — GO FAIR
- Why English? | Reading a Research Methods Section
- Why English? | Reading a Research Results Table
Cycle-sensitive facts were checked against current official pages on 11 October 2026. Always reopen the authority’s live page before a real decision.