By using a sample size calculator, you can figure out how many people is enough, ensuring confidence in your statistics.

Course TopicsPower analyses and sample size calculations are important parts of many research projects. Often, before data are even collected, it is necessary to calculate and justify the required ...

Course TopicsPower analyses and sample size calculations are important parts of many research projects. Often, before data are even collected, it is necessary to calculate and justify the required ...

Determine the availability of subjects for your research. Setting rigid qualifications for study subjects reduces the sample size due to the limited number of people meeting your standards.

If scientists plan ahead correctly, they can determine the sample sizes they need in order to deliver statistically convincing results. And a tool to do just that exists. G*Power to the People Several ...

Health-related quality of life (HRQoL) instruments are increasingly used as outcome variables in clinical trials, leading to a requirement for sample size calculations based on these variables. This ...

Osval Antonio Montesinos-López, Abelardo Montesinos-López, José Crossa, Kent M. Eskridge, Sample Size with Finite Populations and Imperfect Diagnostic Tests for Pooled Samples, Seed Technology, Vol.