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

[Jay Samuels]

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