Free AI learning · Mission 2 of 3
Check a confident answer
Compare an authored answer with supplied records. Keep supported claims, correct contradictions and leave unknowns visible.
Original fictional records and scripted feedback. No model is running; no message, code or approval is sent.
- 1First case
- 2Changed case
- 3Takeaway and quiz
Everyday decisions · First case · guided practice
The bill summary
Select a corrected summary that a person could check against the records.
Fictional account ledger · C7–C9
C7 · Invoice
3 November: repair invoice totals 80 credits.
C8 · Payment
4 November: 50 credits received. Remaining balance: 30 credits.
C9 · Status
No later payment or refund record is supplied.
Authored answer to inspect · not a live model response
Compare this claim with the records above.
Your 80-credit repair bill is fully paid, and a 30-credit refund is on its way.
Which revision is supported?
Compare the proposed artifact and its reasoning. You can use the feedback to revise your choice.
Why this decision matters
Fluent wording is not evidence. Check each consequential claim against the relevant record, including dates and missing records. A second confident answer is not an independent source.
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The bill summary
Select a corrected summary that a person could check against the records.
Fictional account ledger · C7–C9
C7 · Invoice
3 November: repair invoice totals 80 credits.
C8 · Payment
4 November: 50 credits received. Remaining balance: 30 credits.
C9 · Status
No later payment or refund record is supplied.
Authored answer: Your 80-credit repair bill is fully paid, and a 30-credit refund is on its way.
Which revision is supported?
Choose a proposal before reading its rationale.
Keep the confident summary
The bill is paid and the refund is coming.
Needs revision. C8 contradicts fully paid. No supplied record establishes a refund; a remaining balance is not a refund.
Say nothing can be known
There is no usable information about the bill.
Needs revision. C7 and C8 do establish the invoice, payment and remaining balance. Uncertainty about later events does not erase those records.
Separate the balance from the unknown
As of 4 November, the 80-credit invoice has 50 credits paid and 30 credits remaining (C7–C8). Later payment and any refund are not established (C9).
Fits the records. C7–C8 support the amounts and dated balance. C9 limits what can be said about later events and refunds.
Changed case: a newer receipt
Update the summary when a new record changes the balance, without inventing an unrelated outcome.
New fictional account ledger · C10–C12
C10 · Earlier balance
4 November: 30 credits remained on the 80-credit invoice.
C11 · New receipt
5 November: final 30 credits received. Balance: 0 credits.
C12 · Unknown
No refund record is supplied.
Authored answer: There are still 30 credits due, so the account must be overdue.
Which claim should change?
Choose a proposal before reading its rationale.
Keep the earlier balance
30 credits remain due; the account is overdue.
Needs revision. C11 supersedes the balance in C10. Neither an overdue status nor a due date is supplied.
Use the new receipt and keep the refund unknown
As of 5 November the balance is 0 credits (C11). The earlier 30-credit balance is settled; a refund is not established (C12).
Fits the records. C11 changes the supported balance. It does not establish a refund, so C12 still matters.
Turn the final payment into a refund
30 credits will be refunded because the balance is zero.
Needs revision. A zero balance in C11 means nothing remains due in this ledger. It is not evidence of a refund.
Takeaway
- Split the answer into claims you can check.
- Match each claim to a dated record.
- Distinguish supported, contradicted and not established.
- Revise the answer so uncertainty travels with the claim.
Paper practice is self-checked; independent demonstration has not been assessed.
Lesson quiz self-check
1 point for a correct answer; 0 for wrong or unanswered, out of 2 possible points. This paper version records no attempt or score.
Fictional parcel record: 8 May, label created. 9 May, collected by carrier. No delivery scan supplied. Authored answer: It arrived on 9 May.
What does the record support?
- It arrived on 9 May.
- Collected on 9 May; delivery is not established.
- Nothing is known about the parcel.
Answer and explanations
Needs revision: It arrived on 9 May. Collection by a carrier is not a delivery scan.
Correct: Collected on 9 May; delivery is not established. This distinguishes the recorded collection from the missing delivery evidence.
Needs revision: Nothing is known about the parcel. Label creation and collection are recorded facts, even though delivery is unknown.
A new fictional scan says delivered on 10 May. There is no record of who received it or its condition.
Which update respects the new evidence?
- No delivery is recorded.
- The recipient inspected it and confirmed good condition.
- A 10 May delivery scan is recorded; recipient and condition are unknown.
Answer and explanations
Needs revision: No delivery is recorded. The new 10 May scan changes that conclusion.
Needs revision: The recipient inspected it and confirmed good condition. The scan does not establish recipient identity or condition.
Correct: A 10 May delivery scan is recorded; recipient and condition are unknown. The update adds the new fact while preserving the remaining limits.