Cognitive Task

Trail Making Test — Parts A & B

Free to take · Full report and PDF for $7, or $3 to repeat

The timed connect-the-circles task measures visual scanning and psychomotor speed in Part A, then adds set-shifting in Part B. Connect numbered circles in order (1 → 2 → 3 …), then alternate numbers and letters (1 → A → 2 → B …). The report derives completion times, error profile, dwell/transit measures, and the raw B−A set-shifting cost from the recorded trail.

Four stages in a fixed order: Practice A → Part A → Practice B → Part B.
Draw one continuous line through the circles with your finger or mouse — keep contact the whole way, like a pencil on paper. If you touch a wrong circle you will be stopped immediately and must return to the last correct circle; the clock keeps running.
Each test part has a time limit. Work as fast as you can without making mistakes.
Use a quiet moment and a steady surface; a larger screen is easier than a small phone.

Raw scores only. This administration uses generated alternate circle layouts and a touch/mouse response mode, so published paper-and-pencil norms do not apply and are not shown. Your results are raw, within-person figures — completion times, an error profile, and the B−A set-shifting cost. It is not a diagnostic instrument and not a substitute for clinical assessment.

What this test is

Welcome. The Trail Making Test measures visual search, processing speed and the ability to switch back and forth between two sequences, numbers and letters.

How would you like to use it?

For yourself

Take it yourself and see your results as soon as you finish, and you can retake it whenever you like.

$7 for your first report, and $3 for each retake

Take the test

For researchers

Sign up as an Implicitify researcher to use the full suite of measures in your studies, or pay for each test you give. Research pricing is still being set, so we will confirm it with you when you get in touch.

Become a researcher

For clinicians

Open a clinician account to send this measure to your clients or patients through a secure link and review their scored results in one place.

Create a clinician account Already have an account? Go to your clinician dashboard.

For educators

Use our measures in your courses to show students how psychological assessment works and to teach the principles of testing.

Request course access