Take an IQ test developed by a psychometrics test developer. Each test is designed with the highest standards and normed using pspp statistical software. Pearson's R and Cronbach's Alpha are calculated and applied to each test to insure the validity and reliability of the tests. The norm will be publicly posted immediately after the data has become sufficient.
Randy Myers, the author of the IQ tests that are posted on this website, has published numerous books on IQ improvement and has been developing
IQ tests since 2015. He has developed dozens of IQ tests and has been hired numerous times to develop IQ tests for individuals and organizations.
The test certificate costs 5.99 Euros per. After you have paid for the certificate, you can have your score posted on the scoreboard for free.