FREE TO USE / ADULTS 18+
Stroop test
Choose the ink color of a word while ignoring what the word says. This game compares your response times and errors when the word matches its ink color and when it does not.
How to play
Choose Blue or Copper using the labeled buttons or keys 1 and 2. Read the ink color, not the word. There are 24 mixed trials, with 12 matching and 12 nonmatching trials. The difference uses correct responses only.
Your numbers describe this game on this device, not a clinical ability. This is not an ADHD test. There are no norms or comparisons with other people.
Ready when you are.
Frequently asked questions
Is this an ADHD test?
The games and planning tools are not ADHD tests. They cannot diagnose ADHD or change an ASRS screening outcome. Only the separately labeled adult screener provides an official screening result, which is still not a diagnosis.
Where does my information go?
Games keep personal bests only in local storage on this browser. Task checklist text stays in this tab. Blank PDF downloads contain no personal data. Tool analytics send event names only, never your numbers or task text.
What do game numbers mean?
They describe this attempt on this device. Timing includes your device and input method. Interruptions, practice, and the way you play can change the numbers. There are no population comparisons or clinical interpretations.
Prepared by the ADHDFalcon editorial team. Reviewed 2026-10-28. No medical review has occurred.