SCAAT Test: How the Safe Concentration and Attention Test Works (and How to Practice)
Quick answer
The SCAAT (Safe Concentration and Attention Test) is a timed concentration test published by The OPC and used by some employers to select safety-critical transport staff such as train, tram and bus drivers. The OPC says it measures concentration on a monotonous task, concentration on two things at once, and switching attention quickly and accurately, and gives the test time as about 40 minutes. Pass marks aren't published. The OPC sells an official SCAAT practice test with a free sample, which is the best guide to the real format.
If your train, tram or bus driver application has thrown up a test called the SCAAT, it helps to know what is actually known about it. The Safe Concentration and Attention Test is a timed concentration test. Much of what circulates online about its exact structure and pass marks is guesswork, so this guide sticks to what the publisher says, points you to the official practice material, and explains how to build the concentration it measures.
What is the SCAAT test?
SCAAT stands for the Safe Concentration and Attention Test. It is published by The OPC and aimed at safety-critical roles — the publisher lists bus drivers, train drivers, conductors, signallers and track workers among them. It is not part of RSSB's standard train driver battery (RIS-3751-TOM), but some employers use it.
The OPC says the test measures three related abilities: the ability to concentrate on a monotonous task; the ability to concentrate on two things at once; and the ability to switch focus of attention accurately and quickly.
What we know about the format
The OPC gives the test time as approximately 40 minutes, timed. Beyond that, the detailed structure is not published. Candidates describe timed symbol-scanning exercises that get harder as they go, including tracking more than one target at once — but treat any exact sheet counts or per-sheet timings you read online as unconfirmed.
The best guide to the real format is the publisher's own practice material. The OPC sells an official SCAAT practice test (£8.99 at the time of writing) with three practice tests, instructions and an answers booklet, and offers a free sample to download from theopc.co.uk (https://www.theopc.co.uk/practicetests/info/safe-concentration-and-attention-test-scaat-practice/).
- ✓Published by The OPC; about 40 minutes, timed
- ✓Measures concentration on a monotonous task, on two things at once, and attention switching
- ✓Not part of RSSB's standard train driver battery; used by some employers
- ✓Official practice test available from The OPC, with a free sample
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Shortened Vigilance test, 5-scene ATAVT, and a TRP1 taster — no account needed.
Is there a SCAAT pass mark?
Pass marks are not published, and employers set their own. Any percentage you see quoted online is guesswork. Concentrate on staying accurate and consistent from start to finish rather than chasing a number. How many attempts you are allowed also depends on the employer — ask them.
The miniSCAAT
The OPC also publishes a shorter version, the miniSCAAT, which some employers use as a pre-screen. It measures the same kind of concentration, so the preparation is similar.
SCAAT vs Group Bourdon: why practice helps
The SCAAT and the Group Bourdon test are different instruments, but they measure a closely related skill: applying a simple rule accurately, at speed, over a sustained period. The Group Bourdon asks you to mark every dot group containing exactly four dots; the SCAAT asks you to scan for target symbols against the clock. In both, the challenge is keeping your accuracy high while staying fast and not letting your attention drift.
That makes timed concentration practice like the Group Bourdon useful general preparation. It is not a substitute for the official SCAAT practice test, which shows you the real format — use both.
How to practise for the SCAAT
The SCAAT is not a knowledge test you can revise facts for — it is a concentration task, and familiarity helps. Here is a sensible approach:
- ✓Start with the OPC's free SCAAT sample so you know what the real format looks like.
- ✓Train accuracy before speed — rushing and guessing inflates your error rate.
- ✓Build a steady, systematic scanning rhythm. Work left to right, row by row, at a controlled pace rather than in bursts.
- ✓Sit timed concentration drills, like the Group Bourdon, to build stamina so you stay accurate from start to finish.
- ✓Practise holding two targets in mind at once, since the SCAAT measures concentrating on two things.
- ✓Sleep well the night before. Tiredness hurts concentration.
Where the SCAAT fits in train driver selection
For GB mainline train drivers, RSSB standard RIS-3751-TOM sets out the standard battery: Group Bourdon, TEA-Occ, the WAFV vigilance test, TRP1b, TRP2, the ATAVT, 2HAND, a situational judgement exercise and a multi-modal interview. The SCAAT is not part of that standard, but some employers use it for driver and other safety-critical roles. Check your invitation to see which tests you will sit.
Frequently asked questions
What does SCAAT stand for?
SCAAT stands for the Safe Concentration and Attention Test, published by The OPC. It is a timed concentration test used by some employers to select staff for safety-critical transport roles such as train, tram and bus drivers and signallers.
How long is the SCAAT test?
The OPC gives the test time as approximately 40 minutes, timed. The detailed structure isn't published.
What is a good SCAAT score?
Pass marks aren't published and employers set their own, so any figure quoted online is guesswork. Aim for accurate, consistent performance throughout.
Can you retake the SCAAT test?
That depends on the employer — ask them. Good preparation before your first attempt is strongly recommended.
How do you practice for the SCAAT?
The OPC sells an official SCAAT practice test with a free sample, which is the best guide to the real format. Timed concentration drills such as the Group Bourdon test also exercise systematic scanning, speed and error control.
Is the SCAAT the same as the train driver test?
No. The standard GB mainline train driver battery set out by RSSB is Group Bourdon, TEA-Occ, the WAFV vigilance test, TRP1b, TRP2, the ATAVT, 2HAND, a situational judgement exercise and a multi-modal interview. Some employers also use the SCAAT. Check your invitation.