A practice tool, not a verdict.
Last updated: August 15, 2026
Use of R Test
R Test is provided for personal practice and curiosity. You may use the test and export results for lawful personal purposes. Do not attempt to disrupt the site or misrepresent a browser-based score as a controlled scientific result.
Important limitations
R Test is not a medical device, diagnostic service, driving-safety assessment or professional performance certification. Screen refresh rate, browser scheduling and input hardware affect results. Do not make health, safety, employment or eligibility decisions based on a R Test score.
Availability and changes
We may change, pause or discontinue any part of the site without notice. The tool is provided as available, without a promise that results will be uninterrupted, error-free or comparable across devices.
Third-party services
Future advertising, analytics and social-sharing destinations are operated by their respective providers. Your use of those services is subject to their terms and policies.