Define the concepts of mental age and IQ. How are they calculated?
Binet and Stanford expanded and revised the experiment and popularized the ideology of “mental age”, construed as the age where children with mean ability can execute particular tasks.
Assuming that a 4 year old child passed in all the tests comprehended by the sample of mean 5 years old kids, for instance, thereafter the 4 year old kid was accredited with 5 years old as his mental age.
Work done by Binet became more famous in US as compared to France, testing attempts of massive intelligence did not turn into extensively accepted till the year of 1940 in France.
Tests by Binet were translated into English from French and were showed to psychologists in America by Goddard in 1908. He then worked in a school for mentally disabled children.
Goddard termed hi intelligence test’s translation the “Binet-Simon Scale for Measurement of Intelligence”. In his documents on testing intelligence, he also popularized the term moron deduced from Greek language for “slow”.
In the year of 1916, Terman established the form of test which had become standard since then. Terman called it Binet-Stanford, after the name of the university where he worked, and followed the ideology of quotient of intelligence (IQ).
The measure of IQ, characterized as the ratio of chronological and mental age had initially been established by the psychologist from Germany, Stern. The Binet-Stanford underwent many continues and revisions to be extensively utilized.