IBM SPSS SamplePower - Fixed Term License (1 year) + Software Subscription

Whether you're an advanced or beginning statistician or researcher, you'll easily identify the appropriate sample size - every time - for any research criteria. If your sample size is too small, you could miss important research findings. If it's too large, you could waste valuable time and resources. Find the right sample size for your research in minutes and test the possible results before you begin your study, with IBM SPSS SamplePower.

Strike the right balance among confidence level, statistical power, effect size, and sample size using IBM SPSS SamplePower. Compare the effects of different study parameters with its flexible analytical tools. And with an interactive guide and built-in help features, you won't lose time getting up to speed.