Software

PASS software is used by researchers to determine the sample size needed for a study involving a statistical test or confidence interval. It may also be used to analyze the statistical power of a study.

PASS can be used to analyze sample size for over 795 statistical test and confidence interval scenarios. PASS comes with PhD statistician support, as well as complete documentation with examples and validation of every procedure.

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The NCSS statistical analysis and graphics application provides hundreds of statistical tools to analyze and visualize your data. It has been fine-tuned and developed for over 30 years. NCSS can import all the major data types, and filters and transformations are easy to apply.

You can quickly get to know NCSS by watching the product information and training videos, or you can download a 30-day trial, or view the website materials and documentation.

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I adore NCSS and PASS. I have been using them for 20 years now.

Mario Martinez Gonzalez, MPH, FEE, MD, Universidad Nacional Autonoma de Mexico

"I really love this version of NCSS and as teacher and researcher in a medical field I can say there aren't many things I miss in it... The help system is another strong feature; the transformations interface is one of my favorites as well."

Dr. Adrian Buzea