12 citations · 43 across the 5 of their papers we have counts for
5 papers
A Correlated Random Effects Model for Nonignorable Missing Data in Value-Added Assessment of Teacher Effects
Andrew T. Karl, Yan Yang, Sharon L. Lohr
Value-added models have been widely used to assess the contributions of individual teachers and schools to students' academic growth based on longitudinal student achievement outco…
Computation of Maximum Likelihood Estimates for Multiresponse Generalized Linear Mixed Models with Non-nested, Correlated Random Effects
Andrew T. Karl, Yan Yang, Sharon L. Lohr
Estimation of generalized linear mixed models (GLMMs) with non-nested random effects structures requires approximation of high-dimensional integrals. Many existing methods are tail…
Efficient Maximum Likelihood Estimation of Multiple Membership Linear Mixed Models, with an Application to Educational Value-Added Assessments
Andrew T. Karl, Yan Yang, Sharon L. Lohr
The generalized persistence (GP) model, developed in the context of estimating ``value added'' by individual teachers to their students' current and future test scores, is one of t…
Experimental designs for multiple-level responses, with application to a large-scale educational intervention
Brenda Jenney, Sharon Lohr
Educational research often studies subjects that are in naturally clustered groups of classrooms or schools. When designing a randomized experiment to evaluate an intervention dire…
Comment: Struggles with Survey Weighting and Regression Modeling
Sharon L. Lohr
Comment: Struggles with Survey Weighting and Regression Modeling [arXiv:0710.5005]