People of color also are more likely to suffer disparities in mental health treatment in general, which results in their being more likely to be ushered into the criminal justice system, says Tiffany Townsend, PhD, senior director of ethnic minority affairs in APA's Public Interest Directorate.
Units of IQ Rating. The IQ rating scale is built with a mathematical comparison of your mental age with your chronological age, and the result is multiplied by 100 for normalization. Lewis M. Terman, professor of psychology, is quoted to give IQ rating scale a mathematical name of âIntelligent Quotientâ.
99.5% of IQ scores fall between 60 and 140; Low IQ & Mental Retardation. 5% of people have an IQ under 70 and this is generally considered as the benchmark for mental retardation, a condition of limited mental ability in that it produces difficulty in adapting to the demands of life.