I adore NCSS and PASS. I have been using them for 20 years now.

—Mario Martinez Gonzalez, MPH, FEE, MD, Universidad Nacional Autonoma de Mexico

I am a very satisfied user of NCSS. For years I used SPSS in my consulting work, but the cost got to be exorbitant. When I started using NCSS, I found it easy and intuitive to use and extremely accurate in its results. It is not only my statistical analysis program of choice but I have recommended it to many of my clients as well. When I've had questions and called NCSS, I have always gotten expert help and advice and never had a problem go unsolved. Keep up the good work.

—Denis Stadther, Denis Stadther Consulting