Jeez, that IF-AT would have raised my suspicion, too.  Scratched off by a sharp-shooter!

That said, if they were really cheating, it seems like they might take extra effort to cover their trail and be sure to always scratch them all off.

Still. . .  I have never seen an IF-AT like that before.

-M

From: Team-Based Learning [mailto:[log in to unmask]] On Behalf Of Jim Sibley
Sent: Tuesday, November 17, 2009 9:27 AM
To: [log in to unmask]
Subject: Learning a bit about IF-Ats

Hi

We wrongly accused a student team of cheating on an IF-AT (see attached)

At first glance they seem to know where the stars were....partial scratches just barely revealing stars

Turns out when we compared handness (i.e. Students that scratch from --  right, left and middle -- each has an  anomalous pattern of “coincidence”)

There still are some anomalous scratches on the attached IF-AT.....but it took away our confidence to call it cheating

Jim
Jim Sibley
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