Aptitude & Skills
Error checking
Compare two sets of data and spot the differences under time pressure.
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A short 10-question sample of the real format. You can retake it any time.
▶Preview test· Practice set 1 · 10 questions
You'll see your score and the explanations right after.
Full-length practice tests
Continue with new questions of the same type. Unlock all with premium.
- ▶New questionsPractice set 2 · Same format, different questions · 10 questions Start free →
- ▶Extra roundPractice set 3 · Another set to sharpen your pattern recognition · 10 questions Start free →
- ▶RefresherPractice set 4 · Consolidate what you have practiced · 10 questions Start free →
Show 20 more practice tests ↓
- ▶Full runPractice set 5 · Build pace across a whole set · 10 questions Start free →
- ▶Final rehearsalPractice set 6 · One last round before the real thing · 10 questions Start free →
- ▶New questionsPractice set 7 · Same format, different questions · 10 questions Start free →
- ▶Extra roundPractice set 8 · Another set to sharpen your pattern recognition · 10 questions Start free →
- ▶RefresherPractice set 9 · Consolidate what you have practiced · 10 questions Start free →
- ▶Full runPractice set 10 · Build pace across a whole set · 10 questions Start free →
- ▶Final rehearsalPractice set 11 · One last round before the real thing · 10 questions Start free →
- ▶New questionsPractice set 12 · Same format, different questions · 10 questions Start free →
- ▶Extra roundPractice set 13 · Another set to sharpen your pattern recognition · 10 questions Start free →
- ▶RefresherPractice set 14 · Consolidate what you have practiced · 10 questions Start free →
- ▶Full runPractice set 15 · Build pace across a whole set · 10 questions Start free →
- ▶Final rehearsalPractice set 16 · One last round before the real thing · 10 questions Start free →
- ▶New questionsPractice set 17 · Same format, different questions · 10 questions Start free →
- ▶Extra roundPractice set 18 · Another set to sharpen your pattern recognition · 10 questions Start free →
- ▶RefresherPractice set 19 · Consolidate what you have practiced · 10 questions Start free →
- ▶Full runPractice set 20 · Build pace across a whole set · 10 questions Start free →
- ▶Easy · 1One last round before the real thing · 4 questions Start free →
- ▶Easy · 2Same format, different questions · 4 questions Start free →
- ▶Difficult · 1Another set to sharpen your pattern recognition · 4 questions Start free →
- ▶Difficult · 2Consolidate what you have practiced · 4 questions Start free →
What to expect
- 10 questions per practice set, with explanations
- Codes, names and numbers side by side
- Both speed and accuracy count
Tips to score higher
- Compare character by character, not at a glance
- Work in a fixed direction: left to right
- Look-alike digits and letters are the classic trap
Which test are you preparing for?
These tests include this part. Choose your provider and version for the related practice and guidance.
This practice package will help you prepare for the data/error checking section of your aptitide test. All exercises are based on the questions that are used in the assessments of the major assessment centres.