Repeated measures

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From: Gary Horne (gary.horne@excite.com)
Date: Fri Nov 17 2000 - 13:49:19 PST 

Message-ID: <24596567.974497759246.JavaMail.imail@digger.excite.com>
Date: Fri, 17 Nov 2000 13:49:19 -0800 (PST)
From: Gary Horne <gary.horne@excite.com>
Subject: Repeated measures

I'd like to keep this as non-political as possible, although that might be
impossible. George W. Bush's statement the other night about how repeated
polling can only increase error has raised some contraversy in my class
about this issue.

Is this an example of innumeracy? Shouldn't repeated measurements always
increase accuracy?

Or is Gov. Bush correct, and that, in this special case, repeated handling
of ballots degrades the data?

Can we discuss this from a purely scientific perspective and give our kids
some non-partisian information to help them judge these historical events?

Gary Horne

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