EXCELLENT SOURCES FOR FREE STATISTICS
http://www.vipbg.vcu.edu/~mx/mxgui A great matrix manipulation program and structural equations analysis program Mx.
http://www.ghg.net/clips/CLIPS.html Programs for Expert systems.
http://freestatistics.altervista.org/stat.php A source page of other free statistics software.
http://www.angelfire.com/wv/bwhomedir/stats.html A source of on-line books and other statistics software.
http://www.personal.rdg.ac.uk/~snscolet/MScGLMs On-line lectures on the generalized linear model.
http://www.statistics.com/content/freesoft/AZlisting.html Another source of free statistics software.
http://www.fieldingstats.co.uk/ Alan Fielding's introduction to multivariate statistics and lecture on logistic regression.
http://lib.stat.cmu.edu/modules Another source of free statistics software and source code.
http://www.pbarrett.net/statistics_corner.htm#Interrater Articles by Paul Barrett on a variety of statistics.
http://www.personal.psu.edu/users/d/m/dmr/testing/testlinks.htm Dennis Roberts Test/Scale construction links.
http://www.southalabama.edu/coe/bset/johnson/dr_johnson/2textbook.htm Burke Johnson and Larry Christensen book and lectures on statistics concepts.
http://gsociology.icaap.org/methods/soft.html Additional links to statistical software and discussion group on OpenStat.
http://oerl.sri.com A source for project evaluation personnel.
http://pareonline.net/getvn.asp?v=8&n=2 Link to Practical Assessment, Research and Evaluation on-line journal.
http://www.education.umd.edu/EDMS/tutorials/FreeSoftware.html Roberts site for Gummit and related software.
http://statgen.iop.kcl.ac.uk/bgim/mle/sslike_1.html S. Purcell's on-line book on Maximum Liklihood Estimation
http://www.weibull.com/LifeDataWeb/lifedataweb.htm On-line material on Life Data Analysis.
http://www.visualstatistics.net On-line text for visual statistics.
http://forrest.psych.unc.edu/research/index.html Forrest W. Young's ViSta program for visual statistics.
For other sources of free statistics see the excellent page maintained by John Pezzullo at: http://www.statpages.org John has several interactive Java language programs at his site that permit interactive analysis right on the web. For example, he has an excellent program for non-linear regression.
MY FAVORITE FREE SOFTWARE
The following software is exceptional! I encourage you to download and explore their capability.