Kenneth S. Liu is a Senior Principal Scientist at Merck/MRL. He completed a Ph.D. in Biostatistics from the University of Pittsburgh in 2001, with a dissertation on Cox Regression Analysis with Measurement Error in Covariates. He also has an M.A. in Statistics from the University of Pittsburgh and a B.A. in Psychology from Northwestern University. In terms of work experience, he has held various positions at Merck/MRL, including Senior Principal Scientist, Associate Director, and Senior Biometrician. He has worked on projects related to ebola, insomnia, diabetes, HPV, clostridium difficile, prostate cancer prevention, alcohol addiction, ADHD, sleep apnea, schizophrenia, depression, and insomnia. He is a member of the American Statistical Association.