Group Bourdon

Concentration and visual scanning under time pressure

Five pages of dot boxes. Mark every box containing exactly four dots and leave the rest. Two minutes per page, no going back.

Free run: the first 20 questions

You will sit the first 20 questions of this test and get your score for them. Unlock it for $7.99, or every test for $25, to sit the full paper and see the breakdown behind the score. What unlocking adds

Before you start

One page of 20 boxes, 20 seconds. The page does not pause.
Click a box to mark it. Click it again to unmark. Only the final state counts.
Leaving this tab voids the attempt. A concentration test that was paused measures nothing, so it is discarded rather than resumed.