JSM 2015 Online Program

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Legend: Washington State Convention Center = CC, Sheraton Seattle = S, Grand Hyatt = GH and The Conference Center = TCC
* = applied session       ! = JSM meeting theme

Activity Details

CE_36T Wed, 8/12/2015, 1:00 PM - 2:45 PM S-Willow A
Power and Sample-Size Analysis in Stata (ADDED FEE) — Professional Development Computer Technology Workshop
ASA , Stata
Power and sample-size analysis is a key component in designing a statistical study. It investigates the optimal allocation of study resources to increase the likelihood of the successful achievement of a study objective. How many subjects do we need in a study to achieve its research objectives? A study with too few subjects may have a low chance of detecting an important effect, and a study with too many subjects may offer little gain and thus waste time and resources. What are the chances of achieving the objectives of a study given available resources? Or, what is the smallest effect that can be detected in a study given available resources? This workshop will help answer these questions by demonstrating a number of examples of power and sample-size analysis for several statistical methods, including t-test, McNemar's test, and ANOVA. It also will demonstrate how to compute power by simulation and take advantage of Stata's power command's automatic table and graph creation from the results of your simulation. No prior knowledge of Stata is required, but basic familiarity with power and sample-size analysis will prove useful.
Instructor(s): Yulia Marchenko, StataCorp LP

For program information, contact the JSM Registration Department or phone (888) 231-3473.

For Professional Development information, contact the Education Department.

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