# Welcome!

# Shashikala Sukhatme, Associate Professor

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Recent Courses Taught:

- Stat 305 - Engineering Statistics
- Stat 341 - Introduction to the Theory of Probability and
Statistics
- Stat 447 - Statistical Theory for Research Workers
- Stat 546 - Theory of Non-parametric and Asymptotic Methods

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Research Interests: Nonparametric Statistics, Sampling

- An ROC curve is a plot of the probability of true positive
as a function of the probability of false positive
associated with a diagnostic test. The ROC curves are
used to measure diagnostic ability - of a test as well
as to compare several diagnostic tests. At present, I
am developing methods for making Receiver Operating
Characteristic (ROC) curves more effective for analyzing
data in diagnostic clinical experiments and signal
detection.

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Recent Publications:

- Receiver operating characteristic studies and
measurement error (with Marie Coffin),
*Biometrics*, 1997,
**53**, 823-837.
- Exact powers of the Wilcoxon test and the Logrank test
under random censoring (with C. H. Lin),
*The Journal
of Statistical Planning and Inference*, 1995, **48**,
291-301.
- Sstratification in nonparametric ROC Studies (with Craig Beam),
*Biometrics*, 1994, **40**, 149-172.

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Office:

Department of Statistics

Iowa State University

315F Snedecor Hall

Ames, IA 50011-1210

Tel: 515-294-2729

Fax: 515-294-4040
My electronic mail address is
sbsukhat@iastate.edu