American Statistical Association
New York City
Metropolitan Area Chapter

Memorial Sloan-Kettering Cancer Center
Biostatistics Seminar


Chaya S. Moskowitz, Ph.D.
Assistant Attending Biostatistician
Memorial Sloan-Kettering Cancer Center

CALCULATING THE SAMPLE SIZE AND POWER
OF A STUDY WHEN THE OUTCOME IS MEASURED WITH ERROR

In this talk, we will discuss designing a study when we suspect the outcome of interest is measured with error. In particular, we consider a specific case where the variance of the error distribution is proportional to the mean of the true measurements leading to nonconstant error. We evaluate how this measurement error affects the sample size and power of a study. Methods for adjusting the required sample size for this error are proposed and assessed in a simulation study.


Date: Wednesday, March 7, 2007
Time: 4:00 P.M. - 5:00 P.M.
Location: Memorial Sloan-Kettering Cancer Center
Department of Epidemiology and Biostatistics
307 East 63rd Street
(between First and Second Avenues)
3rd Floor Conference Room
New York, New York
Note: To gain access to the building, please follow the directions by the telephone in the foyer.

RESERVATIONS ARE NOT REQUIRED


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