Disclaimer
For education, entertainment and general self-exploration only. These activities are not medical or psychological assessments and do not diagnose, prevent or treat any condition. Results are estimates of performance on these tasks and can be affected by practice, attention, language, your device and your surroundings. If you have concerns about your thinking, vision or hearing, consult a qualified healthcare professional.
Test specific notes
Nonverbal Reasoning Challenge
This is a nonverbal reasoning challenge, not a standardized IQ assessment. Its score does not establish your intelligence or suitability for work or school.
Reaction Time
Browser response times depend on your screen, input device and system load. They are labelled device-dependent and are not a medical measurement.
Sequence Memory
Memory scores vary with attention, fatigue and practice. This activity does not assess memory health.
Sustained Attention
This activity is not an assessment of attention conditions and does not diagnose anything.
Spatial Rotation
Spatial challenge scores are affected by practice and screen size and are not a standardized assessment.
Spot the Difference
Screen size and lighting strongly affect this activity. It is for fun and practice only.
Color Discrimination
Your screen, lighting, viewing distance and vision correction affect this activity. It cannot confirm or rule out color vision differences or determine a clinical vision prescription.
Hearing Perception
This activity is not a hearing examination. Headphones, volume and background noise affect results. Keep sound at a comfortable level and stop if it causes discomfort. Consult a hearing professional for concerns.
Visual Acuity Challenge
Your screen, lighting, viewing distance and vision correction affect this activity. It cannot confirm or rule out color vision differences or determine a clinical vision prescription.
Multitasking
Multitasking scores depend heavily on device and practice. This is not an assessment of any condition.
Hearing safety
Hearing activities start silent and only play after you press a button. Keep sound at a comfortable low level. Never raise the volume just to hear a tone, and stop at any time.