There are IQ tests based only on Raven's matrices. I wonder how a raw score on such a test is "scaled" to an IQ result. As we all know, IQ results depend on the age of individual tested. So I was looking for any data about IQ results and standard deviations in different age groups and I didn't find anything except truisms. But there must be a table with multipliers for every age group, by which a raw test score is multiplied to evaluate the IQ result.
- How are raw Raven's scores converted into age-adjusted IQ?
- Where can one find age norms for Raven's?