Business, 01.04.2020 20:31 latinotimo4890

Starting in the 1970s, medical technology allowed babies with very low birth weight (vlbw, less than 1500 grams, about 3.3 pounds) to survive without major handicaps. it was noticed that these children nonetheless had difficulties in school and as adults. a long-term study has followed 238 vlbw babies to age 20 years, along with a control group of 238 babies from the same population who had normal birth weight. iq scores were available for 119 men in the vlbw group. the mean iq was 85.9, and the standard deviation was 14.9. the 109 men in the control group had mean iq 98, with standard deviation 15.4.

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Starting in the 1970s, medical technology allowed babies with very low birth weight (vlbw, less than...

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