The Contributions of Paul Holland.- Algebraic Statistics for p1 Random Graph Models.- Mr. Holland's Networks: A Brief Review of the Importance of Statistical Studies of Local Subgraphs or One Small Tune in a Large Opus.- Some of My Favorite Things About Working at ETS.- Bayesian Analysis of a Two-Group Randomized Encouragement Design.- The Role of Nonparametric Analysis in Assessment Modeling: Then and Now.- What Aspects of the Design of an Observational Study Affect Its Sensitivity to Bias From Covariates That Were Not Observed?.- The Origins of Procedures for Using Differential Item Functioning Statistics at Educational Testing Service.- Why I Left ETS and Returned.- Cause or Effect? Validating the Use of Tests for High-Stakes Inferences in Education.- Propensity Score Matching to Extract Latent Experiments From Nonexperimental Data: A Case Study.- Returning to ETS from Berkeley.- Loglinear Models as Smooth Operators: Holland's Statistical Applications and Their Practical Uses.- Chain Equipercentile Equating and Frequency Estimation Equipercentile Equating: Comparisons Based on Real and Simulated Data.- An Observed-Score Equating Framework.- Great Colleagues Make a Great Institution.- An Exploratory Analysis of Charter Schools.- Holland's Advice for the Fourth Generation of Test Theory: Blood Tests Can Be Contests.