Cover
Half Title Page
Series Page
Title Page
Copyright
Dedication
Series Editor's Note
Preface
Contents
Part I. The Why, What, and How of CAT
1. Why CAT?
What Is CAT?
Benefits of CAT
Psychometric Benefits
Benefits for Examinees
Organizational Benefits
Challenges of CAT
Organizational Challenges
Examinee Challenges
Psychometric Challenges
When Is CAT Feasible and When Is It Not?
2. The Birth of Adaptive Testing and Its Current Status
Binet's Adaptive Test
The Evolution of Adaptive Testing into CAT
Early Approaches to CAT

Two-Stage and Multistage Tests
CATs from "Pyramidal" Item Structures
The Self-Scoring Flexilevel Test
The Stratified-Adaptive Test
Deficiencies of the Early Approaches to CAT
The Current Status of Applications of CAT
3. Item Response Theory Used in CAT
Item Response Functions for Dichotomously Scored Items
Option Response Functions for Polytomously Scored Items
Information Functions
Item Information Functions
Test and Bank Information Functions
Measuring People with IRT
Maximum Likelihood Estimation of O
Variations of Maximum Likelihood Estimation

Linking and Equating
Estimating IRT Item Parameters
Selecting a Software Package
Interpreting the Output
Summary
Advanced Topic: Item Parameter Estimation for Complex Models
4. Using CAT to Measure Individual Differences
The Components of a Measurement CAT
The Item Bank
Beginning a CAT
Selecting the Next Item
Scoring Examinees
Ending the CAT
Putting It All Together: How CAT Works
Sample CAT: Examinee A
Sample CAT: Examinee B
Some Properties of Fully Adaptive IRT-Based CATs
Advanced Issues
CAT Item Selection
Ending a CAT

5. CAT for Classification and Classification Plus Measurement
Setting the Cutscore
The Bank Response Function
Types of Classification Applications
Testing for Classification Only
Adaptive Classification Test (ACT)
Testing for Classification Plus Measurement
Advanced Issues
Cutscore- versus Estimate-Based Item Selection
Ending an SCT When a O Estimate Is Too Close to the Cutscore
Classifying with More Than Two Cutscores
Classifying from Multiple Measurements
Part II. Getting Your CAT Operational
6. Feasibility and Planning
Developing a Business Case

The Item Bank
Options and Costs
Costs of Test Delivery
Delivering High-Stakes CATs
Custom Test Center Costs
Potential Risks
Psychometric Risks
Nonpsychometric Risks
Additional Considerations
Developing a Project Plan
Stakeholder Buy-In
Implementing Simulations to Facilitate CAT Design
Conclusions
7. Developing a CAT Item Bank: Writing and Evaluating Items
How Many Items Do I Need in My Bank?
Write as Many Items as You Can
Do Not Build an Item Bank Solely for Today-Think about the Future as Well
What Kinds of Items Work for CAT?