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Even low lead levels in children negatively affect test scores

from Medical Xpress

A decrease in the average level of lead in a preschooler's blood reduces the probability of that child being substantially below proficient in reading by the third grade, a new National Bureau of Economics Research working paper reports. And because poor and minority children are more likely to be exposed to lead, the study suggests that lead poisoning may be one of the causes of continuing gaps in test scores between children from different socioeconomic groups. more


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