This provides immediate access to ALL print and digital modules in the portal by "registering" you for each and displaying all modules as a single collection as part of this pass.

This provides access to a ZIP folder with all 45 previously published print modules.

​In this digital ITEMS module, Dr. Greg Hancock and Dr. Ji An provide an overview of scale reliability from the perspective of structural equation modeling (SEM) and address some of the limitations of Cronbach’s α. Keywords: congeneric, Cronbach’s alpha, ​reliability, scale reliability, SEM, s​tructural equation modeling, McDonald’s omega, model fit, parallel, tau-equivalent

In this digital ITEMS module, Dr. Jeffrey Harring and Ms. Tessa Johnson introduce the linear mixed effects (LME) model as a flexible general framework for simultaneously modeling continuous repeated measures data with a scientifically-defensible function that adequately summarizes both individual change as well as the average response. Keywords: fixed effect, linear mixed effects models, longitudinal data analysis, multilevel models, population-average, random effect, regression, subject-specific, trajectory

In this digital module, Nikole Gregg and Dr. Brian Leventhal discuss strategies to ensure data visualizations achieve graphical excellence. The instructors review key literature, discuss strategies for enhancing graphical presentation, and provide an introduction to the Graph Template Language (GTL) in SAS to illustrate how elementary components can be used to make efficient, effective and accurate graphics for a variety of audiences. Key words: data visualization, graphical excellence, graphical template language, SAS

In this digital ITEMS module, Dr. Sue Lottridge, Amy Burkhardt, and Dr. Michelle Boyer provide an overview of automated scoring. They discuss automated scoring from a number of perspectives and provide two data examples, one focused on training and evaluating an automated scoring engine and one focused on the impact of rater error on predicted scores. Key words: automated scoring, hand-scoring, machine learning, natural language processes, constructed response items

In this digital ITEMS module, Dr. Jodi M. Casabianca provides a primer on the hierarchical rater model (HRM) and the recent expansions to the model for analyzing raters and ratings of constructed responses. Keywords: hierarchical rater model, item response theory, longitudinal models, rater effects, multidimensional models, signal detection models

In this digital ITEMS module, Drs. Richard Feinberg, Carol Morrison, and Mark R. Raymond discuss an overview of how credentialing testing programs operate and special considerations that need to be made when unusual things occur. Keywords: Credential/Licensure Testing, Assessment Design, Assessment Challenges, Threats to Score Validity, Operational Psychometrics

In this print module, Dr. Robert L. Brennan introduces the framework and the procedures of generalizability theory using a hypothetical scenario involving writing proficiency. Keywords: analysis of variance, ANOVA, ​classical test theory, CTT, ​generalizability theory, g-theory, measurement procedure

In this print module, Dr. Pui-Wa Lei and Dr. Qiong Wu focus on foundational issues around structural equation modeling (SEM) and illustrate key ideas with examples. Keywords: estimation, factor, latent variable, measurement model, ​path model, ​structural equation modeling, SEM