Answer :
According to the Stanford-Binet formula for an intelligence quotient (IQ), the IQ of ten-year-old child with a mental age of eight and a half years is
85.
Since 1916, the Stanford-Binet has been the gold standard for measuring intelligence. It identifies the cognitive strengths and weaknesses of kids, teens, and adults. Its 10 subtests measure working memory, fluid reasoning, knowledge, quantitative reasoning, visual-spatial reasoning, and other cognitive abilities. Despite going through a number of adjustments since its conception, it is still a well-liked assessment tool today. The IQ rating was determined by
mental age / actual age × 100 = 8.5/10 × 100 = 85
Today, the test is utilized for school placement, clinical and neuropsychological assessment, and other purposes. One of the original adaptive test examples is the Stanford-Binet.
learn more about Stanford-Binet here
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