Task Switch

The Task Switch Game measures cognitive flexibility, how quickly and accurately you can switch between two classification rules. Each round a stimulus appears in one of two blocks, and you answer that block's question about it. It's based on the classic Rogers & Monsell (1995) task-switching paradigm and appears in several trading-firm cognitive assessments.

Classic mode switches between classifying a letter (consonant / vowel) and a number (odd / even). Realistic mode mirrors the arrows-and-arithmetic format used in trading-firm cognitive tests: you switch between comparing two sets of arrows (identical / different) and evaluating whether an arithmetic result is odd. Realistic mode is available with a premium subscription.

Only the highlighted block is active each round. Answer its question about the stimulus with the Yes / No buttons, or use the left arrow key for No and the right arrow key for Yes. You score +1 for each correct answer and lose 1 point for each mistake.

You set the session length with the timer slider, anywhere from 1 to 10 minutes (3 minutes is a good default). Answer as many questions correctly as you can before the timer runs out, both speed and accuracy matter, so focus on consistent, correct responses rather than rushing.

Short, frequent sessions beat occasional long ones. Train a few times a week and watch your score-per-minute climb as the switching cost (the slowdown when the active block flips) shrinks with practice.