The various , moron (which was invented in New Jersey or NY in 1910), joined 'idiots' and 'imbecile' which had been used by themselves at immigration points and mental institutions for some time before moron pushed the ceiling of child development up to include someone being not dumber than a 6 year old, but only just. These terms came under an index of 'retardation' and were degrees of child development essentially.
"Two French psychologists, Alfred Binet and Theodore Simon, created the first "modern intelligence test" in 1911, which measured intelligence quotient ("IQ"). Intelligence Levels As psychologists developed and refined IQ Testing, classification systems were established, and any child with an IQ of above 70 was considered "normal", whi le those with scores above 130 were considered "gifted."
Retardation Levels
"Two French psychologists, Alfred Binet and Theodore Simon, created the first "modern intelligence test" in 1911, which measured intelligence quotient ("IQ"). Intelligence Levels As psychologists developed and refined IQ Testing, classification systems were established, and any child with an IQ of above 70 was considered "normal", whi le those with scores above 130 were considered "gifted."
Retardation Levels
To classify scores below 70, psychologists invented a scale of "retardation"
Morons, Imbeciles, and Idiots:Morons
Those with IQs between 51 and 70 (adequate learning skills to complete menial tasks and to communicate)Imbeciles
Those with IQs between 26 and 50 (unable to progress past a mental age of approximately six)Idiots
those with IQs between 0 and 25 (poor motor skills, extremely limited communication, and little response to stimulus)
The moron/imbecile/idiot classification system remained in use until the early 1970s."
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