EF Battery · Test 01

Trail Making (A + B)

A digital Trail Making Test prototype. Trial A measures processing speed; Trial B adds a set-switching demand. Pointer movement is sampled at ~60 Hz alongside click accuracy and reaction times.

Trial A

Numbers in order

You will see 25 circles numbered 1 through 25, scattered across the screen.

Click the circles in order: 1 23 → … → 25, as quickly and accurately as you can.

If you click the wrong circle, it will flash red. Keep going from where you left off.

Research prototype. Not a diagnostic device. Stimuli and layouts are original and not copied from any copyrighted test. Participant kinematics are stored only in browser memory and included in the downloadable JSON for offline analysis; no data leaves this device unless you export it.