nQuery Advisor

Quickly and easily calculate your sample size and power
Statistical power analysis and sample size determination are crucial elements of study design. A study that is too small may produce inconclusive results, while a study that is too large will waste scarce resources. nQuery Advisor sample size software ensures you get the balance just right!!

nQuery Advisor 7.0 has been designed to run on Windows 7!!

Easily generate your sample size justification statement
nQuery Advisor® sample size software writes up the sample size/power decision. These automated sample size  justification statements make it easy to report the sample size/power decision in the correct language and format in accordance with FDA/ICH guidelines.

Compare different options with easily customizable plots
Quickly evaluate a range of scenarios using nQuery Advisor’s® range of plots. Plot a range of parameters such as power, sample size, effect size and more.

Calculate sample size and power for a wide variety of statistical analyses
nQuery Advisor® sample size software calculates sample size and power for Means, Proportions, Agreement, Regression, Survival Analysis, Nonparametric Test, etc. nQuery Advisor® also helps you provide the standard deviation and effect size information you need to make sample size and power analysis computations.

Work with the sample size software that is used by leading regulatory agencies
nQuery Advisor’s® intuitive and easy-to-use interface and superb range of sample size tables makes it the sample size software of choice for leading statisticians, research organizations, and pharmaceutical companies.

No other sample size software measures up. So why not check out our short YouTube video demo. It takes just a few minutes to see a fully worked example.

See our great nQuery Advisor 7.0 Upgrade Offer. Valid for users of nQuery Advisor Versions 4.0, 5.0 & 6.0
Compare nQuery Advisor Version’s 5.0, 6.0 and 7.0 Right Here