What is Credible Source?
A credible source is a source whose claims are sufficiently trustworthy for a particular purpose because its authorship, evidence, method, publication context, and limitations can be examined and reasonably support the use being made of it.
What good credible source looks like
Credibility is not a permanent badge attached to a domain or format; a source is credible for a claim when the source has relevant expertise or provenance, transparent support, appropriate methods, and enough context to justify that specific claim.
- Relevant authority or firsthand provenance.
- Transparent evidence, citations, data, or methods.
- A publication process appropriate to the claim.
- Current information when the topic changes quickly.
- Clear separation between evidence, opinion, advertising, and inference.
A practical structure to follow
Use these elements as a decision checklist, not as a rigid formula. The exact wording should still fit the reader, context, and purpose.
- Relevant authority or firsthand provenance.
- Transparent evidence, citations, data, or methods.
- A publication process appropriate to the claim.
- Current information when the topic changes quickly.
- Clear separation between evidence, opinion, advertising, and inference.
How to write credible source step by step
- 1State the claim you need to support.
- 2Ask who created the source and how they would know.
- 3Look for underlying data, documents, citations, or methods.
- 4Check whether independent sources reach compatible conclusions.
- 5Inspect conflicts of interest or persuasive incentives.
- 6Prefer the most direct authoritative source available when stakes or precision are high.
8 Credible Source examples
Read the examples for structure and choices rather than copying surface wording. Notice what stays consistent and what changes with audience or purpose.
The official text of a law is credible for what the law says; a legal analysis may be more useful for explaining contested interpretation.
A national statistics agency is credible for the figures it officially publishes when the dataset and definitions match the question.
A medical guideline from a recognized professional body may be credible for current clinical recommendations when it is up to date and evidence graded.
A manufacturer manual is credible for the product’s documented specifications but not necessarily for comparative marketing claims.
A university archive scan is credible for the contents of the preserved document, although historians may disagree about its significance.
A peer-reviewed experiment can be credible evidence for its tested conditions without proving the result applies to every population.
Credible Source templates
Replace every bracketed field with situation-specific information. A template is a starting structure, not finished copy.
Credibility sentence: [Source] is appropriate for [claim] because [relevant authority/provenance] and [evidence/method].
Limitation sentence: The source is useful for [purpose], but it cannot establish [broader claim] because [limitation].
Authority check: [Author/organization] has relevant expertise in [field/context], demonstrated by [role/work/provenance].
Common mistakes to avoid
- Assuming every .org, .edu, or .gov page is equally authoritative for every topic.
- Using popularity, search rank, or visual design as the main credibility test.
- Citing an expert outside the expert’s actual field.
- Calling a source credible without checking what evidence supports the relevant claim.
Final revision checklist
- Does the opening make the purpose clear quickly?
- Is every important claim, detail, or example doing a distinct job?
- Could a reader misunderstand any pronoun, transition, time reference, or instruction?
- Is the tone appropriate for the relationship and situation?
- Can you remove repetition without removing necessary context?
- If the writing contains factual claims, names, dates, quotations, or citations, have you verified them independently?
Questions about Credible Source
What is Credible Source?
A credible source is a source whose claims are sufficiently trustworthy for a particular purpose because its authorship, evidence, method, publication context, and limitations can be examined and reasonably support the use being made of it.
What makes Credible Source effective?
Credibility is not a permanent badge attached to a domain or format; a source is credible for a claim when the source has relevant expertise or provenance, transparent support, appropriate methods, and enough context to justify that specific claim.
How do I write Credible Source?
Start with the purpose and reader, then work through the structure in order. Draft for meaning first, check the examples for pattern, and do a final revision for clarity, accuracy, tone, and unnecessary repetition.
What should I avoid when writing Credible Source?
Assuming every .org, .edu, or .gov page is equally authoritative for every topic. Using popularity, search rank, or visual design as the main credibility test. Citing an expert outside the expert’s actual field.
Should Credible Source show one “last updated” date or track verification at the claim level?
Use a page-level revision date for editorial history, but do not let it imply that every statement was reverified on that date. Changeable facts, quotations, policies, project facts, market data, provider capabilities, and other consequential claims should carry a source record with their own last-verified date or version and a specific recheck trigger. Stable editorial synthesis and original instructional examples can use the page revision/version record instead. When a material correction, retraction, or recommendation change affects what the reader should believe or do, retain the prior record and disclose what changed and why.
How do I know whether a claim or source on a Credible Source guide is stale, corrected, or still active?
Do not infer status from the page-wide update date. Check the controlling source or project record, the exact version/date last verified, and the trigger that could make the item changeable. Keep it active when the source still controls the exact claim; mark review due when a trigger has fired but the conclusion is not yet disproved; mark stale when the old version no longer controls; and use corrected, retracted, withdrawn, or superseded when the editorial history requires it. The correction level should match reader impact: cosmetic edits are not the same as a material factual correction or a critical source failure.
If a source behind Credible Source changes, how do I know which other claims or guides need review?
Use the dependency map rather than reviewing the entire site blindly. Identify the exact claim or example that depends on the source, classify the dependency as direct, shared, advisory, or independent, and record why the source changed. Direct dependents should be reviewed immediately when a controlling source is corrected, retracted, superseded, or no longer supports the claim. Shared dependents can be queued by source/claim ID and scope. Replace the source only when the replacement performs the same evidentiary job—or change the claim. Keep the old source/status in the ledger, then propagate the review to templates, examples, and related guides only where that dependency actually exists.
How can editors track a source change for Credible Source without reviewing the entire site?
Use persistent claim, source, and dependency records. Link only the claims that truly depend on a source, then change that source record’s status in the Writing Authority admin when it is corrected, superseded, stale, withdrawn, or retracted. The registry queues the linked claims with a reason code and priority. Reviewers can see the affected guide, inspect the source/dependency IDs, revise or replace the evidence where necessary, and close the queue item after verification. Original site-created examples and templates remain independent unless they contain a real external factual dependency.