"Today, lots of different definitions of giftedness exist. This wasn't
always the case. Prior to 1972, practically every school used one
criterion and one criterion only to identify giftedness: an IQ cut-off of 130. This criterion was heavily influenced by the pioneering work of Lewis Terman, who equated high IQ with genius.
Then the first federal definition of giftedness came along in 1972,
which was undoubtedly an important step forward. Noting that only a
small percentage of the 1.5 to 2.5 million gifted school children were
actually benefiting from special education services, former U.S.
Commissioner of Education Sidney P. Marland, Jr. proposed a broadened
definition that went beyond just IQ to also include specific academic
and creative aptitudes. That report was important in its broadening of
giftedness."
aqui.
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