alexa Ralph Folsom | OMICS International
ISSN: 0974-276X

Journal of Proteomics & Bioinformatics
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Ralph Folsom

Statistical, Survey, and Computing Sciences
RTI International
USA  

Biography

 Ralph Folsom, PhD, is an expert in the design and analysis of complex probability samples. Working on the nation’s largest household survey (the National Survey on Drug Use and Health or NSDUH), Dr. Folsom initiated innovative weight adjustment methods based on his logistic response propensity and exponential poststratification models. This pioneering work led to the sophisticated GEM weight adjustment methods currently employed for NSDUH. Dr. Folsom also introduced model-based imputations for missing frequency of use and income data items, and he has been an influential collaborator in the development of NSDUH’s current Predictive Mean Neighborhoods (PMN) imputation methodology. Dr. Folsom has recently led RTI’s innovative work in small area estimation research. In addition to his innovative work on many complex survey efforts, Dr. Folsom has made significant contributions to the development of RTI’s computer software for survey data analysis, SUDAAN.

Publications

Conducting Genome-Wide Association Studies: Epistasis Scenarios

Philip Cooley, Nathan Gaddis, Ralph Folsom and Diane Wagener

Research Article: J Proteomics Bioinform/ Vol.5.10 245-251 (2012)

Genetic Inheritance and Genome Wide Association Statistical Test Performance

Philip Cooley, Robert Clark, Ralph Folsom and Grier Page

Research Article: JPB /Vol.3.12 321-325 (2010)

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