About This Test
Error checking is rapidly spotting mismatches between sets of codes, names, or figures.
Error checking measures speed and accuracy at comparing information and flagging where it fails to match. A typical item places an original record beside one or more copies, and you must decide whether the copy is identical or how many discrepancies it contains. The data is deliberately meaningless, made of strings, reference codes, dates, addresses, or number sequences, so you cannot rely on comprehension and must scan character by character.
Errors are subtle: a transposed pair of digits, a swapped letter, a wrong punctuation mark, or a missing field. The test is strictly timed and often has many more questions than most people finish, so the real challenge is sustaining precise attention at pace without letting your eyes glide over small differences.
This aptitude is central to roles where a single copied mistake propagates costly consequences, such as data entry, banking operations, clerical processing, administration, and quality control. Test publishers including SHL offer dedicated checking modules, and the format appears in selection for finance back offices and public sector processing teams.
The skill reflects clerical accuracy and concentration rather than abstract intelligence, and it predicts how reliably someone can transcribe, verify, and reconcile records. Because automated systems still depend on humans to catch inconsistencies that slip through, employers use error checking to identify candidates who stay meticulous during repetitive, detail heavy work where fatigue would otherwise cause slips.
The best approach is a consistent scanning method: compare in small fixed chunks, such as a few characters at a time, and check the same field in every version before moving on, rather than reading each record whole. Pay particular attention to easily confused pairs, transposed digits, and trailing characters at the ends of strings where mistakes hide.
Keep a steady rhythm instead of rushing, because a hurried scan misses exactly the subtle swaps the test is built around, yet dwelling too long costs you unanswered items. A high score signals fast, reliable accuracy and strong sustained concentration; a lower score suggests you either overlook fine discrepancies or slow down so much that throughput suffers under the clock.
What This Test Measures
Detecting mismatches
Comparing an original record against copies and deciding whether they match exactly or how many discrepancies they contain, working with codes, names, dates, and number strings.
Sustained concentration
Holding precise attention across many timed items without letting your eyes glide over small differences, since fatigue is exactly what causes errors to slip through.
Speed with accuracy
Working at pace while staying meticulous, because the test has more questions than most finish, so both rushing and dwelling too long reduce your score.
Spotting subtle slips
Catching transposed digits, swapped letters, wrong punctuation, and missing fields in meaningless data where comprehension cannot help and only careful scanning reveals the fault.