This is untimed educational practice for one cognitive skill. It is not a clinical, diagnostic, employment, or professionally recognized assessment, and it does not produce an IQ score or credential.
| Item | Choice | Answer |
|---|---|---|
| error-detection-q1 | A | Identical |
| error-detection-q5 | A | Identical |
| error-detection-q2 | B | Different |
| error-detection-s01-q04 | A | Two digits have changed places |
| error-detection-s01-q05 | B | A letter has been dropped from the street name |
| error-detection-s01-q06 | C | In the month |
| error-detection-s01-q07 | D | KTP-9034-BV |
| error-detection-s01-q08 | B | Two digits have swapped places |
| error-detection-s01-q09 | A | One version carries an extra trailing digit |
| error-detection-s01-q10 | C | No: the house number differs |
| error-detection-q3 | C | C) 5502-8871-043 |
| error-detection-q6 | D | PD-500 |
| error-detection-s02-q03 | B | TL-3390-KD |
| error-detection-s02-q04 | C | 4437 |
| error-detection-s02-q05 | C | r.okafor@medlim.co.uk |
| error-detection-s02-q06 | B | G8-1174 |
| error-detection-s02-q07 | D | GH24680 |
| error-detection-s02-q08 | A | 03/09 |
| error-detection-s02-q09 | A | Qty 3.5 |
| error-detection-s02-q10 | D | 2.4 mm |
| error-detection-q4 | B | Weight differs |
| error-detection-s03-q02 | C | The party size |
| error-detection-s03-q03 | A | The cable length |
| error-detection-s03-q04 | D | The payroll total |
| error-detection-s03-q05 | B | The pallet count |
| error-detection-s03-q06 | D | The day and month have been reversed |
| error-detection-s03-q07 | C | The invoice total |
| error-detection-s03-q08 | A | The end date |
| error-detection-s03-q09 | B | The last four digits |
| error-detection-s03-q10 | D | Closing |
| error-detection-s04-q01 | A | comittee |
| error-detection-s04-q02 | B | occurrence |
| error-detection-s04-q03 | C | effect |
| error-detection-s04-q04 | A | seperate |
| error-detection-s04-q05 | C | maintenence |
| error-detection-s04-q06 | B | The engineer checked the the pressure valve before the test. |
| error-detection-s04-q07 | A | where |
| error-detection-s04-q08 | C | accommodation |
| error-detection-s04-q09 | D | throughly |
| error-detection-s04-q10 | D | The panel recieved the evidence in three separate bundles. |
| error-detection-s05-q01 | B | The company's logo was redesigned last year. |
| error-detection-s05-q02 | D | The verb should be 'has', not 'have'. |
| error-detection-s05-q03 | B | The meeting overran, the vote was postponed. |
| error-detection-s05-q04 | A | The engineers' tools were returned on Friday. |
| error-detection-s05-q05 | C | It's been three weeks since the server lost its backup. |
| error-detection-s05-q06 | D | Having reviewed the figures, the report was signed by the auditor. |
| error-detection-s05-q07 | B | 'However' needs a semicolon or full stop before it, not a comma. |
| error-detection-s05-q08 | D | She opened the file and found the figures missing. |
| error-detection-s05-q09 | A | The trial ran for six weeks; the results were published in June. |
| error-detection-s05-q10 | C | The verb should agree with 'notes', giving 'were attached'. |
| error-detection-s06-q01 | A | Yes. The total is correct. |
| error-detection-s06-q02 | D | The line total should be £75.00. |
| error-detection-s06-q03 | A | The total is 10 too high. |
| error-detection-s06-q04 | B | No. The amount due should be £204.00. |
| error-detection-s06-q05 | C | There is no fault. The total is correct. |
| error-detection-s06-q06 | D | 192 |
| error-detection-s06-q07 | A | 15% |
| error-detection-s06-q08 | B | It should be 355. |
| error-detection-s06-q09 | C | £15.00 |
| error-detection-s06-q10 | D | Nothing. The claim adds up correctly. |
| error-detection-s07-q01 | B | 31/04/2025 |
| error-detection-s07-q02 | C | MT-441 |
| error-detection-s07-q03 | B | s.iqbal@nortonpress..co.uk |
| error-detection-s07-q04 | A | 104.2 |
| error-detection-s07-q05 | C | 24:10 |
| error-detection-s07-q06 | B | seven |
| error-detection-s07-q07 | C | report-03-2026.pdf |
| error-detection-s07-q08 | D | LS114 BX |
| error-detection-s07-q09 | D | A missing answer and an answer of zero mean different things. |
| error-detection-s07-q10 | A | The leading zeros were stripped when the value was read as a number. |
| error-detection-s08-q01 | A | An invoice is missing from the file. |
| error-detection-s08-q02 | C | Cortez |
| error-detection-s08-q03 | B | A step number is repeated. |
| error-detection-s08-q04 | A | 34 |
| error-detection-s08-q05 | C | Whether page 15 is missing from this copy. |
| error-detection-s08-q06 | D | £14.50 |
| error-detection-s08-q07 | A | 11:00 |
| error-detection-s08-q08 | C | One entry has been placed as though 20 followed 2. |
| error-detection-s08-q09 | B | Row 27 |
| error-detection-s08-q10 | D | One scheduled reading is missing. |
| error-detection-s09-q01 | B | The invoice value, which is £10 below the agreed price. |
| error-detection-s09-q02 | D | No, only one of the two signatures is from a director. |
| error-detection-s09-q03 | A | The portal |
| error-detection-s09-q04 | C | The reminder, since nothing was overdue on 1 July |
| error-detection-s09-q05 | B | The 12-hour figure is a maximum and the 8-hour figure describes one specific condition. |
| error-detection-s09-q06 | D | The action list contains work for an option that was not approved. |
| error-detection-s09-q07 | A | No: 26 staff need at least four supervisors. |
| error-detection-s09-q08 | B | Correct-looking dates will be recorded against the wrong event. |
| error-detection-s09-q09 | C | No. One region did not rise. |
| error-detection-s09-q10 | D | The register overstates how long the control has been operating. |
| error-detection-s10-q01 | C | Something else happening at the same time could explain the rise. |
| error-detection-s10-q02 | D | The units examined cannot stand for the whole crate. |
| error-detection-s10-q03 | A | Confirmation comes after the reset, so an unsaved reading is already lost. |
| error-detection-s10-q04 | C | Passing the audit does not require accreditation, so the conclusion does not follow. |
| error-detection-s10-q05 | B | The average is inflated, because the total is counted as another value. |
| error-detection-s10-q06 | D | Customers who stopped using the site could never have been surveyed. |
| error-detection-s10-q07 | C | The same misunderstanding that caused an error will hide it at review. |
| error-detection-s10-q08 | A | The conditions on that machine may differ from those where the release will run. |
| error-detection-s10-q09 | D | A percentage drawn from very small counts exaggerates ordinary variation. |
| error-detection-s10-q10 | B | The rule has been applied to a field where future dates are legitimate. |