Your data is based on an Experiment or Quasi-Experiment Model with a Pre-Post Test, Treatment and Control Group(s).  You have a two or more variables and are interested in evaluating the effectiveness of your "treatment."  There are a number of packages outlined below which can assist you in your evaluation.  Some of the packages, outline below, provide you with the opportunity to download the package for an evaluation period (most of the time 30 days) before it will need to be registered.  When working at home or access to a computer lab is limited, this may be an option worth exploring.

Minitab Is a leader in delivering analysis which is accurate, reliable, and easy to use.  This package can be downloaded.

DataDesk Is a fast and easy to use data analysis package.  The tools and output are easy to use and understand.

SPC Software. This software package provides sophisticated analysis without lengthy computer/user interaction. This site does provide a download file.

ClickIt Graph.  This package supports 23 different two and three-dimensional graph types, including Linear and nonlinear regression.  This package does provide a download file.

Management Intelligenter Technologien GMBH This package offers an analysis package which combines mathematics, statistics, and signal processing.


PV-WAVE  This package provides advanced visual data analysis.

Analyse-It This package provides extensive parametric & non-parametric procedures for desciptives, comparing means, correlations, and regressions.  This package does provide a download file.

Cytel  This site provides access to StatXact. LogXact, and Egret.  These products assist with statistical analysis of your data.  This package does provide a download file.

GraphPad  This site provides more than a graphing package.  This site offers information on learning to perform data analysis on nonlinear regressions.

SPSS  This software package is one of the most widely recognized and utilized packages around the world.  This site does provide a download file.

These are only a few of the packages which can help you in your quest to evaluating your data set.  For more information:  Statistics Software