The study tested the IQ of a group of 8, 000 10-year-old children, and then their diets were assessed 20 years later, when the subjects were 30 years old.
研究测试了一组8000个10岁的小孩的智商，20年后再评估他们的饮食，那时他们已是30岁了。
This same group also participated in an IQ test in 1980 as part of their enrollment in the National Longitudinal Survey of Youth.
同样是这群人还曾参加了1980年的一次IQ测试，作为国家青年长期追踪调查项目登记入伍的一部分。
There was no significant difference in children's IQ between the group of fathers' exposure and the control group.
父亲接锰组其子女智商与对照组的差异没有显著性。
应用推荐