NCSS 8

We are pleased to announce the release of NCSS 8, the latest edition of our statistical analysis and graphics software. We are confident you will find the enhanced interface and greatly improved graphics system highly suitable for your research needs.

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Read about what’s new in
NCSS 8.

Click here for the complete list of procedures.


PASS 11

PASS 11 adds over 17 new procedures and features to PASS.

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Read about what’s new in
PASS 11
.

"Researchers seeking software to determine sample size have a wide range of choices... Researchers seeking a comprehensive, commercial program for analysis of statistical power and precision should consider PASS 2008."

- Patrick Dattalo
 "A Review of Software for Sample Size Determination"
Eval Health Prof, 2009.

Click here for the complete list of procedures.


Download Updates for PASS and NCSS

Update

What problems have been fixed by recent PASS 11 updates?

What problems have been fixed by recent NCSS 8 updates?