How long does it take to get started?
You can be up and running in less than 30 minutes with our Quick Start booklet. Complete your statistical analysis in less than an hour.
What kind of technical support options are available?
Your questions will be answered free by one of three PhD statisticians on our technical support staff. We will answer your telephone questions between 8 a.m. and 5 p.m., Mountain Time. You can also email your questions to firstname.lastname@example.org. We will answer your email queries, usually within a few hours.
Can I try NCSS or PASS before I buy them?
You can download free, functional 7-day trial copies of PASS 11, NCSS 8, and GESS 2006 by clicking their links. During the trial period, NCSS and GESS are limited to 100 rows of data. After the trial period has passed, you can purchase a serial number that will unlock the program, and it will become the professional release of the program.
Does NCSS offer a 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).
What advantages does NCSS give me?
NCSS has several strengths. It is very easy to learn and use. It has a comprehensive list of available procedures. All calculations are accurate. You can import/export data from about 30 different spreadsheets and databases. Output reports are ready to transfer to your word processor. The price is about half that of the competition. You can have your questions answered by a PhD statistician.
What advantages does PASS give me?
PASS calculates sample size and power for more statistical procedures than any other software package on the market. PASS is easy to use. All calculations are accurate, verified, and validated using published literature with references supplied in the output. Output reports are ready to transfer to your word processor. You can have your questions answered by a PhD statistician.
How does the price compare to the competition?
PASS 11 is priced at $795 for academic/government users, and $1095 for commercial users. NCSS 2007 is priced at $499.95 for academic, government, and commercial users. NCSS 2007 with GESS 2006 is priced at $749.95. These prices are much lower than those of our main competitors. With NCSS, PASS, and GESS, you get much, much more for less.
How easy is the program to use?
NCSS, PASS, and GESS are very easy to learn and use. The user interface is similar to that of Word and Excel, so you probably already know how to run it. The online help gives you the information you need to know quickly and easily.
How do I open my NCSS 97-2007 spreadsheet (*.s0) or database (*.s0z) files in NCSS 8?
The older spreadsheet (*.s0) and database (*.s0z) file types are no longer used directly by NCSS 8, although they can be imported very easily. These have been replaced by the new NCSS Data File (*.NCSS). To import an NCSS .s0 or .s0z file, select File > Import > NCSS 97-2007 Spreadsheet (*.s0) or File > Import > NCSS 97-2007 Database (*.s0z) from the NCSS Data window. Once you have imported your file, save it as an NCSS Data File with extension *.NCSS to take advantage of all the new capabilities of NCSS 8.
How can I make it so NCSS 8 opens up ready to import my old data when I double click on one of my NCSS 97-2007 spreadsheet (*.s0) or database (*.s0z) data files in Windows Explorer?
You can associate NCSS 8 with .s0 and .s0z files on your computer so that NCSS 8 opens up automatically ready to import the file when you double click on a file in Windows Explorer. To do this, right click on a spreadsheet (*.s0) or database (*.s0z) file and choose “Open” or “Open With…”. In the windows dialog that follows, select NCSS 8 as the program used to open this file type. If asked whether to always open this file type with NCSS 8, select “Yes”. From now on, NCSS 8 will open when you double click on the file in Windows Explorer.
How is an NCSS 8 Data File (*.NCSS) different from the NCSS 97-2007 spreadsheet (*.s0) and database (*.s0z) file formats?
NCSS 8 introduced a new data file format (*.NCSS) that combines the features of the older spreadsheet (.s0) and database (.s0z) data file types and adds many more.
The following table shows a comparison of these data file types:
NCSS Data File
*.s0, *.s1, *.s2,
Number of Files
required for Dataset
|1||2 or more||1|
|Maximum Rows||2 Billion*||16384||None|
|Maximum Columns||2 Billion*||256/sheet||None|
Can Add Columns at
Yes, by adding more
Stores Filter with
Activation and Display
Transformations with Data
Value Order changes
|Value Label Lists?||Yes||No||No|
Imports Nearly all
Statistical Data File Formats
*You will likely exceed the memory capacity on your computer long before you reach this limit. The limit is really defined by the total number of cells. You will probably run into memory issues if the number of cells exceeds 25 million.
Conditions and Compatibility
What are the system requirements to run NCSS and PASS?
Click on one of the links below to view the minimum system requirements for NCSS and PASS products
Are NCSS and PASS compatible with Windows 7, Vista, and XP?
Yes. PASS 11, PASS 2008, NCSS 2007, and GESS 2006 are all compatible with Windows 7, Vista, and XP.
Older versions of NCSS and PASS (e.g. PASS 2005, NCSS 2004, ore earlier) will only run on Windows XP or earlier.
Will NCSS and PASS run on 64-bit operating systems?
Yes. NCSS 8, PASS 11, PASS 2008, NCSS 2007, and GESS 2006 will install and run just fine on 64-bit operating systems.
Older versions of NCSS and PASS (e.g. PASS 2005, NCSS 2004, and earlier) will only run on 32-bit systems.
Are NCSS and PASS Section 508 Compliant?
Yes. We have made every effort to make NCSS, PASS, and GESS Section 508 Compliant. Click here to read the NCSS Section 508 Accessibility Statement and download individual VPAT documents.
What are the terms and conditions for using NCSS and PASS?
Use the following links to access the license agreements:
Is there a Mac version of NCSS or PASS?
No. Not yet. For now, the only way to use NCSS or PASS on a Mac is with a Windows emulator.
Where can I find out about product updates (i.e. bug fixes)?
Are student versions available?
Citation in Publications
How should I cite NCSS or PASS in my publication?
Citations should contain the following information. These citations can be adapted as needed to comply with publication format requirements for citations.
PASS 12 Citation:
“Hintze, J. (2013). PASS 12. NCSS, LLC. Kaysville, Utah, USA. www.ncss.com.”
NCSS 8 Citation:
“Hintze, J. (2012). NCSS 8. NCSS, LLC. Kaysville, Utah, USA. www.ncss.com.”
PASS 11 Citation:
“Hintze, J. (2011). PASS 11. NCSS, LLC. Kaysville, Utah, USA. www.ncss.com.”
PASS 2008 Citation:
“Hintze, J. (2008). PASS 2008. NCSS, LLC. Kaysville, Utah, USA. www.ncss.com.”
NCSS 2007 Citation:
“Hintze, J. (2007). NCSS 2007. NCSS, LLC. Kaysville, Utah, USA. www.ncss.com.”
GESS 2006 Citation:
“Hintze, J. (2006). GESS 2006. NCSS, LLC. Kaysville, Utah, USA. www.ncss.com.”
PASS 2005 Citation:
“Hintze, J. (2005). PASS 2005. NCSS, LLC. Kaysville, Utah, USA. www.ncss.com.”
NCSS 2004 Citation:
“Hintze, J. (2004). NCSS 2004. NCSS, LLC. Kaysville, Utah, USA. www.ncss.com.”
PASS 2002 Citation:
“Hintze, J. (2002). PASS 2002. NCSS, LLC. Kaysville, Utah, USA. www.ncss.com.”
NCSS 2001 Citation:
“Hintze, J. (2001). NCSS 2001. NCSS, LLC. Kaysville, Utah, USA. www.ncss.com.”
PASS 2000 Citation:
“Hintze, J. (2000). PASS 2000. NCSS, LLC. Kaysville, Utah, USA. www.ncss.com.”
NCSS 2000 Citation:
“Hintze, J. (2000). NCSS 2000. NCSS, LLC. Kaysville, Utah, USA. www.ncss.com.”