Free attention check
How sharp are you right now?
Three minutes, two tasks adapted from published research paradigms, one reading. A vigilance task records your reaction speed and lapses. A Stroop task records interference and accuracy when a word and its ink colour conflict. Together they produce a 0 to 100 reading for this session.
This short browser version is not a validated or normed instrument, not a diagnosis and not an IQ test. One reading mostly reflects sleep, caffeine, device and time of day. Readings are not saved or sent anywhere; note yours down if you want to compare later.
- 1. Vigilance. Tap the moment the panel turns blue. 8 trials, about a minute. Records your reaction speed and lapses.
- 2. Control. Pick the ink color of the word, not what it reads. 12 trials. Records the interference cost and accuracy when the word and its ink colour conflict.
Best taken on a phone or with a mouse in hand, somewhere you will not be interrupted for three minutes. Your reading is computed in this browser and is not saved or sent anywhere. This short version is not a validated or normed instrument.
What the evidence says about offloading thinking to AI, why reasoning autonomy is measurable, and what the instrument can and cannot claim.
Read the research→A browser demonstration of the adaptive scoring engine behind the Cognitive Autonomy Index.
Open the demo→