Support

Technical Support

Contact us to have your technical questions answered by a Ph.D. statistician during regular business hours (8:00 am to 5:00 pm mountain time, Monday – Friday).

Frequently Asked Questions

Click here to go to the frequently asked question page.

Software Updates

PASS Updates

NCSS Updates

Training

Click here to go to the training page.

"PASS 13 is fantastic! Better than my new dishwasher and microwave combined."

Dr. Barbara Tabachnick, CSUN, Author

"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