# ReactionMetric

> ReactionMetric is a browser-based suite for reaction time, reflex, click-speed, keyboard/audio response, F1-style starts, and guided mouse double-click diagnostics.

## Core pages
- https://reactionmetric.com/ — Reaction Time Test
- https://reactionmetric.com/reflex-test/ — Visual Reflex Test
- https://reactionmetric.com/sound-reaction-test/ — Auditory / Sound Reaction Test
- https://reactionmetric.com/keyboard-reaction-test/ — Keyboard Reaction Time Test
- https://reactionmetric.com/cps-test/ — CPS / Click Speed Test
- https://reactionmetric.com/double-click-test/ — Guided Mouse Double-Click Diagnostic
- https://reactionmetric.com/f1-reaction-test/ — Five-light F1-style Reaction Test
- https://reactionmetric.com/guides/average-reaction-time/ — Average Reaction Time guide
- https://reactionmetric.com/guides/reaction-time-by-age/ — Reaction Time by Age research guide and age-effect explorer
- https://reactionmetric.com/guides/how-to-improve-reaction-time/ — Reaction Time Improvement Guide and Practice Block
- https://reactionmetric.com/methodology/ — Measurement methodology
- https://reactionmetric.com/science/ — Research and measurement limitations
- https://reactionmetric.com/privacy/ — Privacy and data collection
- https://reactionmetric.com/about/ — About ReactionMetric

## Interpretation
ReactionMetric reports browser-observed visual response time. Display refresh, input hardware, operating-system scheduling, browser timing, and system load can affect results. It is not a medical or neurological diagnostic and does not claim to measure pure nervous-system latency.

## Data
Personal history is stored locally in the browser. Community benchmark contribution is optional. When first-party benchmark statistics are published, they should be identified as ReactionMetric browser data with sample size, collection window, task version, and cohort definition.

## Citation preference
Cite the specific ReactionMetric page relevant to the claim. Keep literature-derived context separate from ReactionMetric's own first-party benchmark data.