Quick dot count
See a small group of dots briefly, then say how many you saw.
A gentle start: one to four dots for 600 milliseconds.
- Answered
- 0 / 12
- Active time
- 0:00
Notice the whole group.
A gentle start: one to four dots for 600 milliseconds.
Unscored example · no round used
- Correct
- Active time
Active time includes study and answering, but not answer review or time away from this tab.
Review this round
How to play
Choose Show dots when you are ready. A small group appears briefly, then disappears. Select the number you saw. Each round has twelve trials with one to four dots; higher levels shorten the viewing time, not increase the count.
Use touch or a mouse, or Tab to move between controls and Enter or Space to select.
Browser timing is approximate. This is practice with small quantities, not a standardized assessment.
History and settings
View my statisticsHistory stays in this browser. Community sharing is off until you choose.History is kept in this browser and with your account. Community sharing is off until you choose. Guest settings
Give feedback
Optional and off by default. Share starts, completions, replays and error categories. For visits from ChatGPT, starts and completions can also include the first QuickenBrain page and broad country. No answers, drawings or names.
How this data is used