February 2008

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How do you tell a communist? Well, it's someone who reads Marx and Lenin. And how do you tell an anti-Communist? It's someone who understands Marx and Lenin.

-Ronald Reagan

Pesticides and Academic Achievement

I’m not sure what to make of this study that hit the airwaves today suggesting that there is a direct relationship between the date on which a baby is conceived and the child’s future academic achievement.

[Paul Winchester, M.D., Indiana University School of Medicine professor of clinical pediatrics] and colleagues linked the scores of the students in grades 3 through 10 who took the Indiana Statewide Testing for Educational Progress (ISTEP) examination with the month in which each student had been conceived. The researchers found that ISTEP scores for math and language were distinctly seasonal with the lowest scores received by children who had been conceived in June through August.

Okay, an achievement gap and a correlation. The next question, obviously, is about causation.

"The fetal brain begins developing soon after conception. The pesticides we use to control pests in fields and our homes and the nitrates we use to fertilize crops and even our lawns are at their highest level in the summer," said Dr. Winchester, who also directs Newborn Intensive Care Services at St. Francis Hospital in Indianapolis.

Wait. Let’s start with some skepticism. This is being reported in a very factual manner in headlines and on radio, but Dr. Winchester states very clearly that his group’s findings “do not represent absolute proof that pesticides and nitrates contribute to lower ISTEP scores”. So let’s not jump to conclusions. Dr. .Winchester does feel that the hypothesis is strongly supported and therefore a lot more research should be done, and I can understand that, but is there more reason to believe there is a direct causal relationship between pesticides and this achievement gap? I’d really like to see it. I mean, I don’t particularly want to raise my kids in an area with heavy pesticide use, but neither do I want to see weak conclusions thrown around too readily in our legislative, litigious society. This guy’s Gaia language later in the interview just doesn’t sound as objective as I would like from a scientist.

So, does this achievement gap exist outside of Indiana? Anywhere in the southern hemisphere? I don’t hear that being asked anywhere else, so I’ll ask it here.

Posted by Wulf on May 10, 2007 at 09:54 PM

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How do you tell a communist? Well, it's someone who reads Marx and Lenin. And how do you tell an anti-Communist? It's someone who understands Marx and Lenin.

-Ronald Reagan

Pesticides and Academic Achievement

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