of these programs and the user guides.
Stuffit compressed Self Extracting Archives
Note that people have been complaining about unexplained bugs in the 4.5 version. I am now distributing a perhaps more stable version of
Alpha-Iclust-VSS-IRT v 5.1b
that includes a crude Item Response Theory component. (Self extracting, hqx file).
PMC-General Experimental programs (write me)