Question 1

What units does the Scientific Unit Converter support?

Accepted Answer

The Scientific Unit Converter supports comprehensive SI metric and imperial conversions across 10 categories: Length, Mass & Weight, Thermodynamic Temperature, Pressure & Stress (Pa, bar, psi, atm), Energy & Work (Joules, kWh, eV, BTU), Power, Digital Storage (Bytes, MB, GiB), Speed, Force (Newtons, lbf), and Area.

Question 2

How accurate is the IQ Master assessment score?

Accepted Answer

Our assessment uses Item Response Theory (IRT) calibrated against a Gaussian distribution with a standard mean of 100 and standard deviation of 15, matching classical WAIS-IV and Raven Progressive Matrices psychometric protocols.

Question 3

Is IQ Master free to use without registration?

Accepted Answer

Yes. All clinical test batteries, brain gym games, and scientific engineering unit converter tools are 100% free with zero paywalls, instant local processing, and full privacy.

Question 4

Can this application work completely offline?

Accepted Answer

Yes. IQ Master is built with a local-first Progressive Web App (PWA) architecture with full service worker caching, allowing offline access on Android, iOS, Windows, and macOS.

Select the missing symbol that logically completes the 3×3 matrix.

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