The dMAT runs roughly three and a half hours, entirely on a computer at an authorised test centre, with one scheduled break. Candidates prepare for the questions and almost never prepare for the duration — and then find their accuracy falling away in the General Academic Module, not because the material got harder, but because they did.
The Core Module is dense, visual and fast. The General Academic Module is the opposite — longer passages, small data sets, sustained reading. You are being asked to switch cognitive gear at exactly the point when concentration naturally dips.
Practise the real thing, free. Mock 1 is a full 56-question dMAT Core Module test with enforced per-subtest timers and a worked solution for every question. No hand-written PDFs — it runs in the browser under the same no-notes conditions as the exam. Attempt the free mock test.
Figure Sequences and Latin Squares are visual comparison tasks. Your eyes move constantly between grids, comparing positions and colours across matrices. That is a heavy visual-tracking load sustained for 45 minutes.
Add the no-notes rule and there is no relief anywhere: you cannot offload to paper, so concentration never gets a gap. Ninety minutes of that is genuinely draining in a way that reading ninety minutes of text is not.
Not a subtest. Not "most of one". The full paper, in one sitting, without stopping. This is the only way to find out where your attention actually breaks, and for most people it is around the 60 to 70 minute mark — conveniently just before the break, if you know to expect it.
If your slot is a morning one, a run of late-night practice sessions has trained you for the wrong conditions.
Phone practice, or a laptop on your bed, trains a different posture and a different screen distance from the one you will face. Sit at a desk, screen at eye level, feet flat.
The break is a resource, not an interruption. Waste it and the second half suffers.
Blink deliberately — people blink far less when concentrating on a screen, which is most of the dryness and strain. Between questions, look away briefly and roll your shoulders back; it costs three seconds and resets more than you would expect. And when you notice you are re-reading the same line twice, that is fatigue rather than difficulty. Answer, move on, and come back.
The skills the Core Module tests are trainable and so is the endurance to apply them for three and a half hours. They are not the same skill, and only one of them can be built by doing individual practice questions.
Everything above is a method, and a method you have only read is worth very little at 75 seconds a question. The only way it becomes usable is repetition under a clock, on a screen, with nothing to write on.
That is exactly what DMAT Club is. Mock 1 is free with an account — a full 56-question Core Module paper with enforced per-subtest timers. The full bundle carries 280 unique questions across five mocks with zero repeats, and every single item comes with a worked solution that derives the answer: the movement rule behind each figure, the substitution order for each equation, the forced deductions for each grid. No PDFs, no scanned answer keys.
Start the free 56-question mock test.
About three and a half hours. A 90-minute Core Module of three separately timed subtests, a 30-minute break, then the 90-minute General Academic Module.
Yes, a 30-minute break between the Core Module and the General Academic Module. Use it to get away from the screen, move and eat something light rather than reviewing questions you have already submitted.
Yes. The dMAT is computer-based and taken at an authorised test centre in English. There is no at-home option.
The Core Module is the heaviest visual load - constant comparison between grids with no ability to write anything down - but fatigue usually shows up in the General Academic Module afterwards, which demands sustained reading when concentration is already depleted.
A full 56-question dMAT mock with real timers and a worked solution for every item. Free with an account.
Start the free mock test