Custom Payment

Custom Payment

To make a custom payment to NCSS, fill out the form below by entering the amount in US Dollars that you will be paying to NCSS along with a reference number and any additional comments that you may have to help us identify your payment. Once completed, click the "Go to Checkout" button to fill in your personal data and make the payment.

Go to Checkout  

"PASS is a great program. It does so much and is easy to use. It’s much better than the other sample size programs I’ve used—it has helped me greatly in my research."

Ken Lawson, Ph.D., The University of Texas

"I really love this version of NCSS and as teacher and researcher in a medical field I can say there aren't many things I miss in it... The help system is another strong feature; the transformations interface is one of my favorites as well."

Dr. Adrian Buzea