Below is a zip file containing the Ole Miss IRAP (version 3.5). The program is easy to learn and readily adapted for your own research interests. The pdf file is the current manual for installing and using the program. I recommend reading this manual before anything else (it's only six pages). In addition to installation instructions and explanations of the program features, it also contains some useful information about handling participants and accessing data.
While the Ole Miss IRAP is copyrighted, this was done to keep it freely available. I encourage researchers to use, distribute, and modify the program as they see fit. Feel free to contact me if you encounter technical problems installing or using the program, or even if you would just like to bounce a study idea off of me. I'm all about the research and will do what I can to help.
Have fun!