This study introduces an approach to estimate the uncertainty in bibliometric indicator values that is caused by data errors. This approach utilizes Bayesian regression models, estimated from empirical data samples, which are used to predict error-free data. Through direct Monte Carlo simulation--drawing many replicates of predicted data from the…

This essay reports on a study of first-year student writing. Based on a stratified national sample, the study attempts to replicate research conducted twenty-two years ago and to chart the changes that have taken place in student writing since then. The findings suggest that papers are longer, employ different genres, and contain new error…