IQ scores on the Wechsler Scale are standardized with a mean of 100 and a standard deviation of 15. A score of 100 is considered to be at the average level of intelligence. Higher scores indicate above-average intelligence, and lower scores indicate below-average intelligence.
To determine an approximate IQ score based on the RPM, a person's RPM score would need to be compared to a representative sample of people who have taken both the RPM and the Wechsler IQ test. By examining the relationship between the scores on both tests within that sample, an estimation of the IQ score based on the RPM could be made. However, such a conversion would be a statistical approximation and might not be accurate for every individual.
Keep in mind that psychometric assessments like IQ tests are just one way to measure certain cognitive abilities and do not fully capture a person's intelligence or potential. Scores on these tests can be influenced by various factors such as test-taking skills, motivation, and cultural background.
If you are interested in comparing scores on different intelligence tests, it is best to consult with a qualified psychologist or researcher who is familiar with both tests and can help interpret the results accurately.