Assessment Analysis
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Assessment Analysis

by Oliver Hinds and Aaron Titus

Assessment Analysis was written to help teachers analyze tests and 

other classroom data without using expensive statistical analysis software.

It is useful for analyzing one or two tests (such as a pretest and posttest

or the same test given two experimental and control groups), determining 

correlations between sets of data, and determining factors on a test using

factor analysis.

Assessment Analysis is released under the GNU General Public License. A

copy of the GPL license is distributed with this source in aa/docs/gpl.txt.

Email Aaron Titus at if you have any questions, 

suggestions, or feature requests.


Version History



- first public release

- fixed lots of bugs in the test analysis module

- added item analysis including difficulty, point-biserial coefficient, 

KR20, and pie charts

Known bugs

-normalized gain and effect size are calculated when only one set of data 

is submitted; they should only be calculated for two sets of data

-if question groups do not contain all questions, the results shown are for just

the questions in the question groups

Things to do

-add output option for tab-delimited txt file


Copyright (C) 2004  Oliver Hinds and Aaron Titus

This program is free software; you can redistribute it and/or modify it

under the terms of the GNU General Public License as published by the

Free Software Foundation; either version 2 of the License, or (at your

option) any later version.

This program is distributed in the hope that it will be useful, but

WITHOUT ANY WARRANTY; without even the implied warranty of


General Public License for more details.

You should have received a copy of the GNU General Public License along

with this program; if not, write to the Free Software Foundation, Inc.,

59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.