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 Research

Computerized Testing Reports

Computerized Testing Reports:

Alphabetical Listing of All Computerized Testing Reports

Adaptive Mastery Testing Using the Rasch Model and Bayesian Sequential Decision Theory (CT 99-02)
by Cees A. W. Glas and Hans J. Vos, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Adaptive Testing With Equated Number-Correct Scoring (CT 99-12)
by Wim J. van der Linden, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Alternative Approaches to Updating Item Parameter Estimates in Tests With Item Cloning (CT 03-01)
by Cees A. W. Glas, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Anchor-Based Methods for Judgmentally Estimating Item Difficulty Parameters (CT 98-05)
by Ronald K. Hambleton, Stephen G. Sireci, H. Swaminathan, Dehui Xing, and Saba Rizavi, University of Massachusetts at Amherst

  • Executive Summary
  • Full Research Report (PDF)

Assessing Subgroup Differences in Item Response Times (CT 97-03)
by Deborah L. Schnipke and Peter J. Pashley

  • Executive Summary
  • Full Research Report (PDF)

Assessing the Dimensionality of Simulated LSAT Item Response Matrices with Small Sample Sizes and Short Test Lengths (CT 96-01)
by André F. De Champlain

  • Executive Summary
  • Full Research Report (PDF)

A Bayesian Approach to Item Calibration and Evaluation of Parameter Drift (CT 00-02)
by Cees A. W. Glas, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

A Bayesian Method for the Detection of Item Preknowledge in CAT (CT 98-07)
by Lori D. McLeod, Law School Admission Council; Charles Lewis, Educational Testing Service; and David Thissen, University of North Carolina at Chapel Hill

  • Executive Summary
  • Full Research Report (PDF)

Capitalization on Item Calibration Error in Computer Adaptive Testing (CT 98-04)
by Wim J. van der Linden and Cees A. W. Glas, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

CATSIB: A Modified SIBTEST Procedure to Detect Differential Item Functioning in Computerized Adaptive Tests (CT 97-11)
by Ratna Nandakumar, University of Delaware; and Louis Roussos, Law School Admission Council

  • Executive Summary
  • Full Research Report (PDF)

A Comparison of Item-Selection Methods for Adaptive Tests With Content Constraints (CT 04-02)
by Wim J. van der Linden, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

A Comparison Testlet-Based Test Designs for Computerized Adaptive Testing (CT 97-01)
by Deborah L. Schnipke and Lynda M. Reese

  • Executive Summary
  • Full Research Report (PDF)

Computer Usage and Access Patterns of Actual and Potential LSAT Takers (CT 97-10)
by Susan M. Jenkins, Law School Admission Council; and Samantha D. Holmes, University of Michigan

  • Executive Summary
  • Full Research Report (PDF)

Computer Use and Preferences Among LSAT Takers (CT 05-01)
by Ann Gallagher, Andrea E. Thornton, Deborah A. Suto, and Christopher W. T. Chiu

  • Executive Summary
  • Full Research Report (PDF)

Computerized Adaptive Testing Simulations Using Real Test Taker Responses (CT 96-06)
by Xiang Bo Wang, WeiQin Pan, and Vincent Harris

  • Executive Summary
  • Full Research Report (PDF)

Computerized Adaptive Testing with Item Cloning (CT 01-03)
by Cees A. W. Glas and Wim J. van der Linden, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Computerized Adaptive Testing with Multiple Form Structures (CT 99-14)
by Ronald D. Armstrong and Douglas H. Jones, Faculty of Management, Rutgers University; Nicole B. Koppel, School of Business, Montclair State University; and Peter J. Pashley, Testing and Research, Law School Admission Council

  • Executive Summary
  • Full Research Report (PDF)

Constraining Item Exposure in Computerized Adaptive Testing with Shadow Tests (CT 02-03)
by Wim J. van der Linden and Bernard P. Veldkamp, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Cross Validating Item Parameter Estimation in Adaptive Testing (CT 00-04)
by Wim J. van der Linden and Cees A. Glas, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

CUSUM Statistics for Large Item Banks: Computation of Standard Errors (CT 98-11)
by C.A.W. Glas, University of Twente

  • Executive Summary
  • Full Research Report (PDF)

Detecting Items That Have Been Memorized (CT 99-05)
by Lori McLeod and Deborah L. Schnipke

  • Executive Summary
  • Full Research Report (PDF)

Detection of Advance Item Knowledge Using Response Times in Computer Adaptive Testing (CT 03-03)
by Rob R. Meijer and Leonardo S. Sotaridona, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Detection of Person Misfit in Computerized Adaptive Testing with Polytomous Items (CT 00-03)
by Rob R. Meijer and Edith M. L. A. van Krimpen-Stoop, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Development and Testing of an Innovative Listening Comprehension (LC) Item Type Interface (CT 01-05)
by Kimberly Swygert and Michael Contreras

  • Executive Summary
  • Full Research Report (PDF)

Effects of Multidimensionality on IRT Item Characteristics and True Score Estimates: Implications for Computerized Test Assembly (CT 97-06)
by Xiang-Bo Wang, Vincent Harris, and Louis Roussos

  • Executive Summary
  • Full Research Report (PDF)

An Empirical Bayes Enhancement of Mantel-Haenszel DIF Analysis for Computer-Adaptive Tests (CT 98-15)
by Rebecca Zwick, University of California, Santa Barbara; and Dorothy T. Thayer, Educational Testing Service

  • Executive Summary
  • Full Research Report (PDF)

Equating an Adaptive Test to a Linear Test (CT 04-01)
by Wim J. van der Linden, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Estimation of Item Dimensional Measurement Direction Using Conditional Covariance Patterns (CT 98-02)
by Daniel Bolt, University of Illinois at Urbana-Champaign; Louis Roussos, Law School Admission Council; and William Stout, University of Illinois at Urbana-Champaign

  • Executive Summary
  • Full Research Report (PDF)

Evaluating Equating Error in Observed-Score Equating (CT 04-03)
by Wim J. van der Linden, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

An Evaluation of a Two-Stage Testlet Design For Computerized Testing (CT 96-04)
by Lynda M. Reese and Deborah L. Schnipke

  • Executive Summary
  • Full Research Report (PDF)

An Evaluation of the Impact of Cloning on Item Parameters (CT 99-08)
by Kimberly A. Swygert, David J. Scrams, Louis E. Thompson, and Deborah E. Kerman

  • Executive Summary
  • Full Research Report (PDF)

An Expected Response Function Approach to Graphical Differential Item Functioning (CT 99-01)
by David J. Scrams and Lori D. McLeod

  • Executive Summary
  • Full Research Report (PDF)

Exploring Issues of Test Taker Behavior: Insights Gained from Response-Time Analyses (CT 98-09)
by Deborah L. Schnikpe and David J. Scrams

  • Executive Summary
  • Full Research Report (PDF)

Exploring New Methods to Detect Person Misfit in CAT (CT 99-13)
by Rob R. Meijer and Edith M. L. A. van Krimpen-Stoop, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Final Report: LSAC Skills Analysis Law School Task Survey (CT 02-02)
by Stephen W. Luebke, Kimberly A. Swygert, Lori D. McLeod, Susan P. Dalessandro, and Louis A. Roussos

  • Executive Summary
  • Full Research Report (PDF)

Fixed-Weight Methods of Scoring Computer-Based Adaptive Tests (CT 97-12)
by Bert F. Green, Johns Hopkins Unversity

  • Executive Summary
  • Full Research Report (PDF)

A Formal Characterization of and Some Alternatives to Sympson-Hetter Item-Exposure Control in Computerized Adaptive Testing (CT 02-05)
by Wim J. van der Linden, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Formal Usability Testing of the Computerized LSAT Prototypes at the 1999 Law School Recruitment Forums (CT 01-01)
by Kimberly A. Swygert, Jennifer A. Lawlor, and Kira Shteinberg

  • Executive Summary
  • Full Research Report (PDF)

The Impact of Item Location Effects on Ability Estimation in CAT: A Simulation Study (CT 01-06)
by Mei Liu, Law School Admission Council; and Renbang Zhu and Fanmin Guo, Educational Testing Service

  • Executive Summary
  • Full Research Report (PDF)

The Impact of Item Parameter Estimation on Computerized Adaptive Testing with Item Cloning (CT 02-06)
by Cees A. W. Glas, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Impact of Local Item Dependence on Item Response Theory Scoring in CAT (CT 98-08)
by Lynda M. Reese

  • Executive Summary
  • Full Research Report (PDF)

Implementing Content Constraints in Alpha-Stratified Adaptive Testing Using a Shadow Test Approach (CT 01-09)
by Wim J. van der Linden, University of Twente, Enschede, The Netherlands; and Hua-Hua Chang, National Board of Medical Examiners

  • Executive Summary
  • Full Research Report (PDF)

Incorporating Content Constraints into a Multi-Stage Adaptive Testlet Design (CT 97-02)
by Lynda M. Reese, Deborah L. Schnipke, and Stephen W. Luebke

  • Executive Summary
  • Full Research Report (PDF)

The Influence of Speededness on Item-Parameter Estimation (CT 96-07)
by Deborah L. Schnipke

  • Executive Summary
  • Full Research Report (PDF)

An Integer-programming Approach to Item Pool Design (CT 98-14)
by Wim J. van der Linden and Bernard P. Veldkamp, University of Twente; and Lynda M. Reese, Law School Admission Council

  • Executive Summary
  • Full Research Report (PDF)

Investigating the Quality of Items in CAT Using Nonparametric IRT (CT 04-05)
by Rob R. Meijer, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Item Parameter Calibration of LSAT Items Using MCMC Approximation of Bayes Posterior Distributions (CT 00-05)
by Douglas H. Jones and Mikhail Nediak, Rutgers, The State University of New Jersey, Department of Management Science and Information Systems

  • Executive Summary
  • Full Research Report (PDF)

Item Theft in a Continuous-Testing Environment: What is the Extent of the Danger? (CT 98-01)
by Deborah L. Schnipke, Law School Admission Council; and David J. Scrams, Educational Testing Service

  • Executive Summary
  • Full Research Report (PDF)

Kernel-Smoothed DIF Detection Procedure for Computerized Adaptive Tests (CT 00-08)
by Ratna Nandakumar and Julie Cwikla Banks, University of Delaware; and Louis Roussos, Law School Admission Council

  • Executive Summary
  • Full Research Report (PDF)

Making Use of Response Times in Standardized Tests: Are Accuracy and Speed Measuring the Same Thing? (CT 97-04)
by David J. Scrams, Johns Hopkins University; and Deborah L. Schnipke, Law School Admission Council

  • Executive Summary
  • Full Research Report (PDF)

A Method for Determining the Maximum Number of Nonoverlapping Linear Test Forms That Can Be Assembled From an Item Pool (CT 03-04)
by Ronald Armstrong, Rutgers Business School, Newark/New Brunswick, Rutgers University; and Dmitry Belov, Law School Admission Council

  • Executive Summary
  • Full Research Report (PDF)

A Method to Determine Targets for Multi-Stage Adaptive Tests (CT 02-07)
by Ronald Armstrong, Rutgers University; and Louis Roussos, University of Illinois at Urbana-Champaign

  • Executive Summary
  • Full Research Report (PDF)

A Model for Optimal Constrained Adaptive Testing (CT 97-07)
by Wim J. van der Linden, University of Twente; and Lynda M. Reese, Law School Admission Council

  • Executive Summary
  • Full Research Report (PDF)

Modeling Item Response Times With a Two-State Mixture Model: A New Approach to Measuring Speededness (CT 96-02)
by Deborah L. Schnipke and David J. Scrams

  • Executive Summary
  • Full Research Report (PDF)

Modeling Nonignorable Missing Data Processes in Item Calibration (CT 04-07)
by Cees A. W. Glas and Jonald L. Pimentel, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Modeling Variability in Item Parameters in Educational Measurement (CT 01-07)
by Cees A. W. Glas and Wim J. van der Linden, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Modifying Existing Dimensionality Assessment Tools for Use in a CAT Environment (CT 99-10)
by Amy Goodwin Froelich, William Stout, and Terry Ackerman, University of Illinois at Urbana-Champaign

  • Executive Summary
  • Full Research Report (PDF)

Normal Models for Response Times on Test Items (CT 04-08)
by Wim J. van der Linden, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

On Giving Test Takers a Choice Among Constructive Response Items (CT 96-03)
by Xiang Bo Wang

  • Executive Summary
  • Full Research Report (PDF)

On the Use of Collateral Item Response Information to Improve Pretest Item Calibration (CT 98-13)
by William Stout, Terry Ackerman, Dan Bolt, Amy Goodwin Froelich, and Dan Heck, University of Illinois at Urbana-Champaign

  • Executive Summary
  • Full Research Report (PDF)

Optimal Assembly of Tests with Item Sets (CT 99-04)
by Wim J. van der Linden, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Outlier Detection in High-Stakes College Entrance Testing (CT 01-08)
by Rob R. Meijer, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

A Polynomial Logistic Regression Approach to Graphical Differential Item Functioning (CT 99-06)
by Lori D. McLeod, David J. Scrams, and Louis A. Roussos

  • Executive Summary
  • Full Research Report (PDF)

Predictability of Cloned Item Parameters (CT 99-09)
by Kimberly A. Swygert, David J. Scrams, Deborah E. Kerman, and Louis E. Thompson

  • Executive Summary
  • Full Research Report (PDF)

Quality Control of Online Calibration in Computerized Assessment (CT 97-15)
by C. A. W. Glas, Department of Educational Measurement and Data Analysis, Faculty of Educational Science and Technology, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

The Relationship of Item-level Response Times With Test-Taker and Item Variables in an Operational CAT Environment (CT 98-10)
by Kimberly A. Swygert

  • Executive Summary
  • Full Research Report (PDF)

Representing Response-Time Information in Item Banks (CT 97-09)
by Deborah L. Schnipke and David J. Scrams

  • Executive Summary
  • Full Research Report (PDF)

A Review of the LSAT Using Literature on Legal Reasoning (CT 97-08)
by Gilbert E. Plumer

  • Executive Summary
  • Full Research Report (PDF)

Robustness of Person-Fit Decisions in Computerized Adaptive Testing (CT 04-06)
by Rob R. Meijer, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Routing Rules for Multiple-Form Structures (CT 02-08)
by Ronald D. Armstrong, Rutgers Business School, Rutgers University

  • Executive Summary
  • Full Research Report (PDF)

Simple Nonparametric Checks for Model Data Fit in CAT (CT 01-04)
by Rob R. Meijer, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

A Simulation Study of Optimal Online Calibration of Testlets Using Real Data (CT 00-07)
by Douglas H. Jones and Mikhail S. Nediak, Rutgers, The State University of New Jersey

  • Executive Summary
  • Full Research Report (PDF)

Simultaneous Assembly of Multiple Test Forms (CT 97-13)
by Wim J. van der Linden, University of Twente, Enschede, The Netherlands; and Jos J. Adema, PTT Telecom

  • Executive Summary
  • Full Research Report (PDF)

Small Sample Estimation in Dichotomous Item Response Models: Effect of Priors Based on Judgmental Information on the Accuracy of Item Parameter Estimates (CT 98-06)
by Hariharan Swaninathan, Ronald K. Hambleton, Stephen G. Sireci, Dehui Xing, and Saba M. Rizavi, University of Massachusetts Amherst

  • Executive Summary
  • Full Research Report (PDF)

Some New Methods to Detect Person Fit in CAT (CT 99-03)
by Rob Meijer and Edith M. L. A. van Krimpen-Stoop, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Survey and Usability Testing Results of the Analytical Reasoning Computerized Prototype at the 2000 Law School Recruitment Forums (CT 02-01)
by Kimberly A. Swygert, Susan P. Dalessandro, and Mike Contreras

  • Executive Summary
  • Full Research Report (PDF)

Survey Results From Demonstration of the Preliminary Computerized LSAT Prototypes at the 1995–1998 Law School Recruitment Forums (CT 00-01)
by Kimberly A. Swygert and Andrea E. Thornton

  • Executive Summary
  • Full Research Report (PDF)

Survey Results From the Computerized LSAT Prototype Testing at the 1999 Law School Recruitment Forums (CT 00-06)
by Kimberly A. Swygert, Jennifer A. Lawlor, and Kira Velikopolsky

  • Executive Summary
  • Full Research Report (PDF)

Testlet-Based Adaptive Mastery Testing (CT 99-11)
by Cees A. W. Glas and Hans J. Vos, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Theoretical Formula for Statistical Bias in CATSIB DIF Estimates Due to Discretization of the Ability Scale (CT 99-07)
by Louis A. Roussos, Law School Admission Council; and Ratna Nandakumar and Julie Cwikla Banks, University of Delaware

  • Executive Summary
  • Full Research Report (PDF)

Understanding Psychological Processes that Underlie Test Takers' Choices of Constructed Response Items (CT 97-05)
by Xiang Bo Wang

  • Executive Summary
  • Full Research Report (PDF)

The Use of Person-Fit Statistics in Computerized Adaptive Testing (CT 97-14)
by Rob R. Meijer and Edith M.L.A. van Krimpen-Stoop, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

The Use of Statistical Process Control-Charts for Person-Fit Analysis in Computerized Adaptive Testing (CT 98-12)
by Rob R. Meijer and Edith M. L. A. van Krimpen-Stoop, University of Twente

  • Executive Summary
  • Full Research Report (PDF)

Using Patterns of Summed Scores in Paper-and-Pencil Tests and CAT to Detect Misfitting Item Score Patterns (CT 02-04)
by Rob R. Meijer, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Using Response-Time Constraints in Item Selection to Control for Differential Speededness in Computerized Adaptive Testing (CT 98-03)
by Wim J. van der Linden, University of Twente, Enschede, The Netherlands; and David J. Scrams and Deborah L. Schnipke, Virtual Psychometrics

  • Executive Summary
  • Full Research Report (PDF)

Using Response Times to Detect Aberrant Responses in Computerized Adaptive Testing (CT 01-02)
by Wim J. van der Linden and Edith M. L. A. van Krimpen-Stoop, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

Violations of Ignorability in Computerized Adaptive Testing (CT 04-04)
by Cees A. W. Glas, University of Twente, Enschede, The Netherlands

  • Executive Summary
  • Full Research Report (PDF)

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