[Reading-hall-of-fame] Oops, an error

[P. David Pearson]

But with new IRT techniques, differences due to sheer difficulty of 
the exams is easy to control for.

David

At 10:04 AM -0600 11/7/04, Jay Samuels wrote:
>I looked over my message and with regard to test materials want to change it
>to the following: If the pretest materials easy the student will do well and
>if the post test materials are harder, the student might do poorly, thus
>leading to a zero or negative gain score, not because of conditions within
>the students but because of an artifact created by the materials, leading to
>an experimental error.
>
>  Dr. (S)tanley Jay Samuels
>  Department of Educational Psychology
>  College of Education
>  University of Minnesota
>  Minneapolis, MN 55455
>
>  Universitiy Phone 612 625 5586
>  Fax  612624 8241
>
>
>_______________________________________________
>Reading-hall-of-fame mailing list
>Reading-hall-of-fame@nottingham.ac.uk
>http://lists.nottingham.ac.uk/mailman/listinfo/reading-hall-of-fame


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