Category Archives: Praxes

Frances Lawrenz is one of my advisors. She knew about my interest in spatially enable evaluation and put me in touch with Bob Tornberg, a graduate student in Educational Policy and Administration who was leading an evaluation for the Bell … Continue reading →

My last post demonstrated a structural equation model (SEM) of complex sample data in . I attempted to replicate Laura Stapleton’s example, but my standard errors were larger than expected. I wrote to Laura, and she graciously reviewed my results. … Continue reading →

I am using data from the Early Childhood Longitudinal Study (ECLS) Birth Cohort for my research assistantship with Judy Temple. I have an analysis in mind that will involve factor analysis and path analysis simultaneously (i.e., a structural equation model). … Continue reading →

One of my research interests has been the geographic distribution of early student achievement at the school district-level. District-level outcomes apply to large areas that are often out of alignment with neighborhoods, cities, and counties where local information could benefit … Continue reading →

Google’s statisticians routinely use randomized experiments to improve their products (and profit), but did you know they also conduct quasi-experiments when random assignment is not feasible? I receive the American Statistical Association’s (ASA) membership magazine called Amstat News. Daryl Pregibon, … Continue reading →