Interpretation boundary
The site records actions inside specific browser tasks. It does not diagnose a person or guarantee broad outcomes.
Pages can demonstrate a rule and support same-condition personal comparison, but they do not replace medical, psychological, vision, educational, occupational, or other professional assessment.
Scores cannot diagnose ADHD, a memory disorder, cognitive impairment, anxiety, a vision problem, or any clinical condition. The site has no interview, history, controlled administration, representative norm, or validated cutoff.
Display refresh, rendering, the event loop, input hardware, screen dimensions, zoom, dropped frames, and background load can affect timing or visual tasks. Phone and computer, or touch and mouse, results should not be compared directly.
Keep the task, mode, difficulty, device, input, and environment as stable as practical. Retain accuracy, errors, and validity flags and examine several recent records. One fastest or lowest result does not represent general ability.
The site guarantees no improvement in cognition, attention, memory, reading, visual field, brain function, health, academic work, or employment performance. Practiced-task gains and transfer to other activities are separate questions.
If a real-world concern persists or affects daily life, seek context-appropriate qualified support rather than repeating a task to find a diagnostic answer.
Read supporting explainers and practical guides.