Group Bourdon Test Practice
Master the dot cancellation concentration test with unlimited free practice. Build the sustained attention skills needed to pass your train driver assessment.
What Does the Group Bourdon Test Measure?
Sustained Attention
Ability to maintain focus over extended periods
Pattern Recognition
Quick identification of target patterns
Processing Speed
Rapid visual information processing
Concentration
Mental endurance under time pressure
How the Test Works

Find 4-Dot Groups
Scan each row and click groups containing exactly 4 dots
Avoid Others
Skip groups with 3 or 5 dots—accuracy is more important than speed
Work Quickly
Each table lasts 2 minutes. Complete all tables before time runs out
Expert Tips to Pass
Scan Systematically
Work row by row, left to right. Never skip around or you'll miss targets.
Maintain Pace
Find your rhythm early. Going too fast causes errors, going too slow means incomplete sections.
Focus on Targets
Memorise the target dot pattern before starting each section.
Accuracy Over Speed
Accuracy matters more than speed. One mistake can undo multiple correct finds.
Why Train Operators Use This Test
Train drivers need sustained concentration for hours at a time. They must constantly monitor signals, track conditions, and safety systems—all while maintaining awareness of their environment. The Group Bourdon test proves you have the mental focus required for this safety-critical role.
Failing this test is one of the most common reasons candidates are rejected. Practice builds the specific concentration skills tested, giving you a significant advantage over unprepared applicants.
Frequently Asked Questions
Start Practicing Now
Don't leave your train driver assessment to chance. Practice the Group Bourdon test unlimited times for free and build the concentration skills you need to pass.