The Switch

Switch between two rules on the fly and see the cost it takes on your reaction time.

Trains cognitive flexibility / task-switching (the "switch cost" paradigm from cognitive psychology). · free, no account needed

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How it works

Each trial shows a two-digit number under a rule cue that is either odd/even or high/low. The rule can repeat or switch from the previous trial, and the ratio of switch trials increases as you advance. The session summary reports the gap between switch and repeat reaction times as the headline "switch cost" metric.

Ranks

Novice Switcher
Switcher
Fast Switcher
Master of Flow
Elite Switcher
Switch Virtuoso
Grandmaster Switcher
Legendary Switcher