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Power and Sample Size Concepts

These resources explain the concepts of power and sample size and what they depend on.

The Abdul Latif Jameel Poverty Action Lab’s sampling and sample size lecture

A two-hour video lecture on sampling and sample size with a focus on cluster designs.

University of Oklahoma Health Sciences Center sample size justification lecture

A recorded lecture on the basic concepts of power and sample size for experimental studies.

University of Alabama-Birmingham power, type II error and sample size lecture

A 5:27 educational video to explain power in study design.

CRCAIH Methodology Core sample size calculations webinar

A 35-minute webinar on sample size calculations for grant applications.

UCLA IDRE Statistical Consulting’s Introduction to Power Analysis webpage

An accessibly-written webpage about the fundamentals of power and sample size.

University of California-Davis sample size and power lecture

A one-hour video lecture on the importance of sample size and what information is needed to calculate sample sizes.

Biostats4you

The Biostats4you website was developed to serve medical and public health researchers and professionals who wish to learn more about biostatistics.

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