Test divided attention, task switching, and dual-task performance
Multitasking is not one ability. Sometimes you are switching quickly between rules, sometimes dividing attention between two signals, and sometimes monitoring several things at once. These free tools separate those demands so you can test each one directly and practise the part that gives you the most trouble.
Compare reaction speed alone with reaction speed while keeping a Brick Breaker ball alive.
Follow changing colour and shape rules to measure how quickly and accurately you switch mental sets.
Respond to visual and audio targets, including trials where both channels need an answer.
Monitor two independent streams and respond only when the correct side shows a target.
What people call “multitasking” usually involves one of several different control problems. The brain may need to switch rules, divide attention across channels, keep a secondary task running, or watch two streams for separate targets. A result from one task does not automatically predict performance on the others.
Dual-task cost is the change that appears when a second activity is added to something you can already do. The Multitasking Reaction Time Test measures this directly by comparing reaction time alone with reaction time while you play Brick Breaker.
Task switching is the ability to stop applying one rule and begin applying another. The Task Switch Test alternates between colour and shape judgments, allowing you to compare repeat trials with trials where the rule changes.
Cross-modal divided attention means watching and listening at the same time without treating one channel as background noise. The Dual Task Challenge combines visual targets with high and low tones, including moments when both channels require a response.
Parallel monitoring involves keeping track of separate streams and matching each target to the correct response. The Dual-Stream Reaction Test makes the left and right streams independent, so answering at the wrong time or on the wrong side matters.
For a broad profile: begin with the Multitasking Test. Its four parts are designed to show whether your performance is fairly even or whether one kind of multitasking is clearly harder than the others.
For a visible baseline comparison: use the Multitasking Reaction Time Test. It gives you a simple before-and-after contrast: reaction speed by itself, then reaction speed with another task running.
For rule confusion or slow mental shifts: use the Task Switch Test. This is the most focused tool for practising the moment when the instruction changes but the stimulus still looks familiar.
For listening while watching: use the Dual Task Challenge. It is useful when you want a task that forces both senses to stay active rather than letting vision or sound dominate.
For monitoring several locations: use the Dual-Stream Reaction Test. It rewards catching targets while also resisting false responses when a stream is empty or shows a non-target.
These tools are short online assessments and practice tasks, not clinical measures. Their scores are most useful for comparing your own sessions and seeing which specific multitasking demand deserves more practice. For a broader collection of reasoning, speed, memory, and attention assessments, visit the free brain tests, or return to Cognitive Train’s cognitive training homepage.
What counts as multitasking, when the brain switches between tasks, and when two activities can genuinely overlap.
🔀 Myth & RealityWhy most complex tasks cannot run in parallel—and what the familiar claim that “multitasking is a myth” gets right and wrong.
🧠 Brain ScienceThe cognitive systems behind switching, divided attention, interference, working memory, and the costs of competing demands.