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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

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Software Updates

PASS Updates

NCSS Updates

Compatibility and System Requirements

PASS 15 System Requirements

NCSS 11 System Requirements

PASS 14 System Requirements

NCSS 10 System Requirements

PASS 13 System Requirements

NCSS 9 System Requirements

PASS 12 System Requirements

NCSS 8 System Requirements

PASS 11 System Requirements

PASS 2008 System Requirements

NCSS 2007 System Requirements

Previous Versions

Training

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"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

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