Group Bourdon Test Practice
Master the dot cancellation concentration test with unlimited 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
The Group Bourdon test is a concentration and attention assessment used in UK train driver recruitment. You must find and mark specific dot patterns within complex grids under strict time limits.
The test typically consists of multiple 2-minute sections. While this sounds short, the intense concentration required makes it mentally exhausting.
Train operators don't publish exact passing scores. However, accuracy is more important than speed. Aim for 95%+ accuracy while completing as many items as possible.
Yes! Train Driver Pro offers unlimited Group Bourdon test practice, so you can practice as many times as you need to build your confidence.
Yes. Each section is strictly timed (usually 2 minutes). You cannot pause during a section. The time pressure is intentional—it tests your ability to maintain focus under stress.
A computer or tablet with mouse/touchpad works best. The test requires clicking on dot groups, so precise input is helpful. A stable internet connection ensures your progress saves correctly.
Want a deeper dive? Read our complete Group Bourdon guide →
Start Practicing Now
Don't leave your train driver assessment to chance. Practice the Group Bourdon test unlimited times and build the concentration skills you need to pass.