The Stroop Effect
Name the ink, not the word. WIZ times the fight.
What this is
A real reaction-time test. I will flash color words in colored ink, one at a time. Your only job is to tap the color of the ink, never the word. If you see the word RED printed in blue, the answer is blue.
Most trials the word and the ink will agree and it will feel easy. Some trials they will fight, and you may feel a tiny hitch. Go as fast as you can without making mistakes. I am timing every tap.
A note before we start
Since Stroop (1935), naming the ink of a conflicting color word has been reliably slower than naming a matching one, because reading is automatic and you cannot switch it off. The gap between the easy trials and the hard ones is one of the most replicated effects in psychology. You are about to measure your own, in milliseconds. About a dozen and a half taps, plus a short warm-up. On a phone, tap. On a desktop, you can also use keys 1 2 3 4.
No login. No data leaves your browser. Around twenty quick taps.