PASS 11 Minimum System Requirements

Processor:	450 MHz or faster processor 32-bit (x86) or 64-bit (x64) processor
RAM:	256 MB (512 MB recommended)
Operating Systems:	Windows XP with Service Pack 2 or higher Windows Vista Windows 7 or later Windows Server 2003 Windows Server 2008 Windows Server 2008 R2 or later
Privileges:	Administrative rights required during installation only
Third Party Software:	Microsoft .NET 3.5 SP1 (included with PASS CD, comes pre-installed with Windows 7 and Windows Server 2008 R2) or higher Microsoft Windows Installer 3.1 or higher Adobe Reader® 7 or higher (required for the Help System only)
Hard Disk Space:	120 MB for PASS (plus space for Microsoft .NET 3.5 SP1 if not already installed)
Printer:	Any Windows-compatible inkjet or laser printer

A Windows emulator is required to run PASS 11 on a Mac.

Download a 7-day Trial Copy of PASS 11

Use Evaluation Serial Number "TRYPASS11"

Place an Order Using Our Secure Online Order Form

PASS 11

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

Click here for pricing.

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 a
PASS 11 Update

Most Recent Version:
Version 11.0.8
Released December 2, 2011

What problems have been fixed by recent PASS 11 updates?

PASS Training Course

A 4-week, online course on sample size and power, featuring PASS, is now being offered through statistics.com. The course is taught by Dr. Thomas P. Ryan.

Click here for more information.


Minimum System Requirements Click on one of the links below to view the minimum system requirements for NCSS and PASS products: NCSS 8 PASS 11 PASS 2008 NCSS 2007 Previous Versions	Accuracy We at NCSS have put a great deal of effort into finding the most accurate algorithms possible. The programs have been tested and verified over and over, both by us and by our customers. Each routine has been verified against textbooks, journal articles, and, where possible, other software. NCSS and PASS are some of the most accurate statistical analysis programs available. NCSS and PASS calculate with seventeen-digit, double-precision accuracy.	Guarantee If you are not completely satisfied with an NCSS product during the first 30 days for any reason, return the program for a full, prompt refund (excluding shipping).

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