Stanford-Binet Intelligence Scales

Terman, L. M., and M. A. Merrill, Stanford-Binet Intelligence Scale, ... 

Rochester, NY Low SES, mostly African-American children, enrolled at 5-7 months community Pb exposures (172) Stanford—Binet Intelligence Scale—Fourth Edition (SBIS-4), 3 and 5 years old PbB peak, 9.7 pg/dl at 2 years. Lifetime PbB means 7.7 pg/dl, 3 years 7.4 ig/dl, 5 years. Peak PbB at 5 years < 10 pg/ dl, 56% of children Adjusted significant Inverse a ociations of PbB and lull-scale IQ, both years Canfield et al. (2003)... 

Bloom, A., Raskin, L. and Reese, A. (1976) A comparison of WISC-R and Stanford-Binet Intelligence Scale classifications of developmentally disabled children. Psychol. Schools, 13, 288-290... 

The Bayley Scales, the Stanford-Binet Intelligence Scale (S-B IQ) and the Home Observation for the Measurement of the Environment (HOME) Inventory were administered in the homes by trained examiners blinded to lead level. Staff members drawing venous blood samples were trained in paediatric blood collection. PbB levels were determined by atomic absorption spectrophotometry using a graphite furnace and matrix modification to control chemical interference. 

In the 1980s it was discovered that the renormalizations of the Stanford—Binet IQ test, ongoing since its introduction in America in 1932, and the renormalizations of the other major IQ test, the Wechsler Adult Intelligence Scale (WAIS), ongoing since 1953, had been hiding the fact that the performance of the American population on IQ tests had been increasing about 3 points per decade or approximately 10 points per generation. 

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