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Power and sample size by simulation

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  • Alex Asher

    (StataCorp)

Abstract

Stata's built-in power command accepts user-deRned programs to calculate power, sample size, or effect size. Power can be estimated by simulation, even in complex scenarios where there is no closed- form expression. To estimate sample size given power, multiple simulations are needed. This talk describes how to use simulation to estimate power and sample size using the power command. Learn how to do the following: Write simulation programs that are compatible with all the features of power, ciwidth, and gsdesign Customize graphs and tables using an initializer Control Monte Carlo errors Estimate sample size using the bisection method

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  • Alex Asher, 2025. "Power and sample size by simulation," UK Stata Conference 2025 14, Stata Users Group.
    • Handle: RePEc:boc:lsug25:14
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