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description=PASS is the leading sample size software for clinical trial, pharmaceutical, medical, and many other research areas. Learn more about PASS online now!;

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sample size software power analysis software pass ncss com sample size pass pass 2026 procedures info videos what s new in pass 2026 free trial pass documentation system requirements publications citing pass customer satisfaction order data analysis ncss ncss 2026 procedures info videos plot capabilities what s new in ncss 2026 free trial ncss documentation academic institutions system requirements publications citing ncss customer satisfaction order free trials pass 2026 sample size ncss 2026 data analysis industries medical research academia business research quality control mass appraisal classroom support center support faq contact us on a mac about us pass videos pass training videos pass downloads updates pass system requirements pass documentation pass license agreements ncss videos ncss training videos ncss downloads updates ncss system requirements ncss documentation ncss license agreements online store online store student store custom payment price lists my account my account pass 2026 power analysis sample size start trial buy now what s new software pass overview overview procedures videos documentation buy now sample size power pass software provides sample size tools for over 1200 statistical test and confidence interval scenarios more than double the capability of any other sample size software each tool has been carefully validated with published articles and or texts get to know pass by downloading a free trial viewing the video to the right or exploring this website pass comes complete with integrated documentation and phd statistician support pass has been fine tuned for over 25 years and is now the leading sample size software choice for clinical trial pharmaceutical and other medical research it has also become a mainstay in all other fields where sample size calculation or evaluation is needed obtaining a sample size in pass in pass you can estimate the sample size for a statistical test or confidence interval in a few short steps if you need guidance during any of the steps pass has excellent documentation there are free training videos and you can contact our team of phd statisticians enlarge infographic choosing a procedure finding the sample size procedure is easy using the drop down menu the procedure search or the category tree watch a short video to learn how to select your desired procedure in pass enlarge infographic enter the values the sample size procedure tools are easy to use and have built in help messages for every option enlarge the infographic to see the descriptions of the ways that pass helps you to enter the proper values in a sample size procedure tool you can also watch this video to see an example of using a procedure window in pass enlarge infographic ready to use output when a pass procedure is run the sample size results and corresponding plots are displayed in the output window the sample size or power curves can be clicked to be shown in a separate window for viewing or saving navigation of the output is easy with the output navigation tree the format of the output makes it easy to be viewed copied and pasted or saved multiple output runs can be sent to the output gallery for saving or for comparing sample size analyses to take a video tour of the output window in pass click here enlarge infographic publications citing pass start your free 30 day trial now buy now i have been using ncss in my high school class room for 22 years i find it very easy to use and my students use it to calculate their results for their lab reports science fair projects and now they are using it for ap research projects it can be used for everything from the basics to the most advanced statistics ncss is very affordable for any high school budget david buncher high school teacher miami fl ncss is an excellent tool for clinical and epidemiological research that is both user friendly and economical with excellent support it removes the fear of statistics from clinical research and makes research accessible to all curious clinicians ted rosenberg md msc frcp c clinical assistant professor university of british columbia sample size pass 2026 procedures info videos what s new in pass 2026 free trial pass documentation system requirements publications citing pass customer satisfaction order data analysis ncss 2026 procedures info videos what s new in ncss 2026 free trial ncss documentation academic institutions system requirements publications citing ncss customer satisfaction order industries medical research academia business research quality control mass appraisal classroom support about us contact us support downloads faq training store online store price lists my account copyright 2026 ncss all trademarks are the properties of their respective owners privacy policy terms of use sitemap