The major assumption behind traditional parametric procedures--more fundamental than normality and homogeneity of variance--is the assumption that we have randomly sampled from some population ...

Random assignment is an attempt to handle larger classes of students. For this purpose, we generate a series of html (txt, pdf) files with the same structure but different numbers. In addition, we ...

randomizr is a small package for r that simplifies the design and analysis of randomized experiments. In particular, it makes the random assignment procedure transparent, flexible, and most ...

Random assignment is insufficient for measured treatment responses to recover causal effects (comparative statics) in dynamic economies. We characterize analytically bias probabilities and magnitudes.

Hydroxychloroquine, chloroquine, and remdesivir are among the drugs commonly discussed as treatments for the new viral infection, coronavirus disease 2019 (COVID-19). Previously, I described different ...