The Stanford-Binet Intelligence Scales is an individually administered intelligence test that was revised from the original Binet-Simon scale by Lewis M. Terman, a psychologist in Stanford University. It is a cognitive ability intelligence test that is used to diagnose developmental or intellectual deficiencies in young children. The test measures five factors and consists of both verbal and non-verbal subtests. The five factors being tested are knowledge, quantitative reasoning, visual- spatial processing working memory and fluid reasoning.
The MA/CA ratio yields the Intelligence Quotient (IQ), a concept proposed by psychologist William Stern in 1912. If two children both obtain an MA of 5 years on an intelligence test, but one child is 4 years and the other is 6, obviously the younger child is developing intellectually at a much faster rate. To express this fact in the form of IQ’s, we take the ratio of MA to CA and multiply by 100 to eliminate decimals.
Thus, the bright child mentioned above earns an IQ of 125 and the slower child earns an IQ of 83. If the individual’s MA or CA are equal and the IQ of 100 was obtained. This is considered to be an average score. IQ above 100 indicated that the person’s intellectual age was greater than his/her CA. Numbers below 100 indicated that individual was less intelligent than his/her peers.
Uses : School placement, determined presence of learning disability or development delay, tracking intellectual development included in neuro psychological testing to assess the brain function of individual with neurological impairment.