Chapter C10 · Interactive Course
Check an answer
Use evidence to accept, correct or hold each claim.
Core Learning Concept
Act as an editor checking a prepared recommendation. Separate its factual claims, locate the relevant documents, check dates and conditions, and recompute the total. Decide claim by claim whether to keep, correct, investigate, or remove it. You do not need to accept or reject the entire answer as one piece.
What You’ll Learn in This Chapter
-
Find the claim to check
Isolate a factual claim inside a persuasive answer.
A factual claim is a statement that evidence could support or contradict, such as an opening time. A preference such as “this is a lovely venue” needs different treatment. Separate these parts before checking. Predictions can also be evaluated, but usually need assumptions and later outcomes rather than one present-day fact.
-
Go to the original source
Choose evidence close to the fact being checked.
An original source is close to where information was established: the organizer’s schedule, an original study, or the record of an event. Search results help you find it. Check who is responsible for the fact and whether their source is current; prominence in search is not a guarantee of accuracy.
-
Check what the source actually says
Verify that a real citation supports the particular claim.
Checking a citation involves more than opening a working link. Find the passage that supposedly supports the statement and compare its conditions. A page saying “members enter free” does not support “everyone enters free.” Preserve the source’s limits when correcting the answer.
-
Check the date and situation
Decide whether evidence applies to the current question.
Evidence applies within a time and a situation. Last year’s schedule can be authentic yet unsuitable for this year’s visit. Check the date, location, audience, and any exceptions. If one of these differs from your question, look for matching evidence before using the claim.
-
Check numbers independently
Verify a numerical result using a transparent calculation.
An independent calculation uses the original quantities and a transparent method, such as a calculator or spreadsheet formula. Check units as well as arithmetic. If four tickets cost three units each, the total is twelve before any stated fees. A fluent explanation can still contain an incorrect calculation.
-
Agreement is not independent evidence
Distinguish corroboration from repetition of one underlying source.
Independent evidence comes from separate ways of establishing a fact. Four pages copying one announcement have one underlying origin. Trace where each claim came from before treating agreement as corroboration. Multiple AI replies can repeat the same error without adding any new evidence.
-
Make a proportionate decision
Choose to use, revise, verify further or stop based on evidence and consequences.
Proportionate checking matches the strength of evidence and the consequences of being wrong. You might keep a supported date, correct a total, and leave an unsupported accessibility claim unresolved. If an unresolved fact is essential to the decision, obtain the needed evidence before acting on it.
-
Be the editor of an AI answer
Audit an outing recommendation against a dated source packet, catching a stale time, an unsupported claim and an incorrect total.
In-Depth Practice & Real-World Application
Workplace Scenario: Auditing fluent, authoritative-sounding AI text for subtle factual errors and hallucinations.
Worked Example: The Fact-Audit Checklist
Common mistake: Accepting a plausible citation or date because the paragraph is beautifully written and grammatically flawless.
Effective pattern: Underlining every noun, statistic, date, and URL claim, then verifying each against a primary source or authoritative documentation.
Language models prioritize fluency over truth. Verification requires treating every specific fact as an unverified hypothesis.
Key Takeaways
- Fluency is not accuracy: models sound equally confident when citing true facts or hallucinating fake citations.
- Check numbers, proper names, dates, and regulatory citations with special diligence.
- Ask the model to supply verifiable search queries or quote exact source sentences.
Workplace tip: Adopt the “Red Pencil” habit: never publish or forward an AI-generated number, law reference, or quote without primary source confirmation.