Jill Marie Montaquila DeMatteis is an American statistician specializing in survey methodology.
She has worked as a statistician in the US Bureau of Labor Statistics, and is a research associate professor at the University of Maryland, College Park[1] and a vice president in the Statistics and Evaluation Sciences Group of Westat.
[1] She moved to Westat in 1995 and returned to graduate study, completing her Ph.D. at American University in 1998.
[1] Her dissertation, All-Cases Imputation Variance Estimator: A New Approach to Variance Estimation for Imputed Data, was supervised by Robert Jernigan.
[1] In 2016 the Government Statistics Section gave her their Pat Doyle Award.