Recognised as the most influential publication in the field, ARM facilitates deep understanding of the Rasch model and its practical applications. The authors review the crucial properties of the model and demonstrate its use with examples across the human sciences. Readers will be able to understand and critically evaluate Rasch measurement research, perform their own Rasch analyses and interpret their results. The glossary and illustrations support that understanding, and the accessible approach means that it is ideal for readers without a mathematical background.
Highlights of the new edition include:
- More learning tools to strengthen readers’ understanding including chapter introductions, boldfaced key terms, chapter summaries, activities and suggested readings.
- Greater emphasis on the use of R packages; readers can download the R code from the Routledge website.
- Explores the distinction between numerical values, quantity and units, to understand the measurement and the role of the Rasch logit scale (Chapter 4).
- A new four-option data set from the IASQ (Instrumental Attitude towards Self-assessment Questionnaire) for the Rating Scale Model (RSM) analysis exemplar (Chapter 6).
- Clarifies the relationship between Rasch measurement, path analysis and SEM, with a host of new examples of Rasch measurement applied across health sciences, education and psychology (Chapter 10).
Intended as a text for graduate courses in measurement, item response theory, (advanced) research methods or quantitative analysis taught in psychology, education, human development, business, and other social and health sciences. Professionals in these areas will also appreciate the book’s accessible introduction.
Notes on This Volume
About the Authors
- Why Measurement Is Fundamental
- Important Principles of Measurement Made Explicit
- Basic Principles of the Rasch Model
- Building a Set of Items for Measurement
- Invariance: A Crucial Property of Scientific Measurement
- Measurement Using Likert Scales
- The Partial Credit Rasch Model
- Measuring Facets Beyond Ability and Difficulty
- Making Measures, Setting Standards, and Rasch Regression
- The Rasch Model Applied Across the Human Sciences
- Rasch Modeling Applied: Rating Scale Design
- Rasch Model Requirements: Model Fit and Unidimensionality
- A Synthetic Overview
Children Can Construct Measures
Interval Scales v. Ratio Scales: A Conceptual Explanation
Statistics and/or Measurement
Why Fundamental Measurement?
The Rasch Model for Measurement
A More Suitable Analogy for Measurement in the Human Sciences
An example: "By How Much?"
Moving From Observations to Measures
The Pathway Analogy
A Basic Framework for Measurement
The Rasch Model
The Nature of the Data
Analyzing Dichotomous Data: The BLOT
A Simple Rasch Summary: The Item Pathway
The Wright Map
Comparing Persons and Items
The Problem of Guessing
Difficulty, Ability, and Fit
The Theory–Practice Dialog
Person and Item Invariance
Please Keep in Mind
Anchoring Item Values
Invariance of Person Estimates across Tests: Concurrent Validity
Common-Person Linking: BLOT & PRTIII
The Theory–Practice Dialog
Measurement Invariance: Where It Really Matters
Failures of Invariance: DIF
Differential Rater Functioning
DIF: Not Just a Problem, but an Opportunity
The Rasch Model for Polytomous Data
Analyzing Rating Scale Data: The Instrumental Attitude towards Self-Assessment Questionnaire
Clinical Interview Analysis: A Rasch-Inspired Breakthrough
Scoring Interview Transcripts
Partial Credit Model Results
The Theory–Practice Dialog
Dimensionality: Primary Components Factor Analysis
A Basic Introduction to the Many-Facets Rasch Model
Why Not Use Interrater Reliability?
Relations Among the Rasch Family of Models
Data Specifications of the Many-Facets Rasch Model
Rating Creativity of Junior Scientists
8.6 Many-Facets Analysis of Eighth-Grade Writing
Rasch Measurement of Facets Beyond Rater Effects
Creating a Measure from Existing Data: The RMPFS (Zi Yan, EdUHK)
Physical Fitness Indicators
Seven Criteria to Investigate the Quality of Physical Fitness Indicators
Results and Discussion
Optimising Response Categories
Influence of Underfitting Persons on the RMPFS
Properties of the RMPFS With Subsamples
Age Dependent or Age Related?
The Final Version of RMPFS
Objective Standard Setting: The OSS Model (Gregory Stone, U Toledo)
The Objective Standard Setting Models
Objective Standard Setting for Dichotomous Examinations
Objective Standard Setting for Judge-Mediated Examinations
Fair Standards, Not Absolute Values
Rasch Regression (Svetlana Beltyukova, U Toledo)
Predicting Physician Assistant Faculty Intention to Leave Academia
Rasch Regression Using the Anchored Formulation
Rasch Regression: Alternative Approaches
Rasch Measurement in Health Sciences
Optimising an Existing Instrument: The NIHSS and a Central Role for PCA
Creating a Short Form of an Existing Instrument: The FSQ
Theory Guides Assessment Revisions: The PEP–S8
Applications in Education and Psychology
Rasch Measures as Grist for the Analytical Mill
Rasch Gain Calculations: Racking and Stacking
Rasch Learning Gain Calculations: The CCI
Racking and Stacking
Stacking Can Be Enough: UPAM
Sub- Test Structure Informs Scoring Models
Applications to Classroom Testing
Can Rasch Measurement Help S.S. Stevens?
Using Rasch Measures with Path Analysis (SEM Framework)
Rasch Person Measures Used in a Partial Least Squares (PLS) Framework
And Those Rasch Measurement SEs?
Can We Really Combine SEM and Rasch Models?
Rating Scale Design
Category Frequencies and Average Measures
Thresholds and Category Fit
Revising a Rating Scale
Guidelines for Collapsing Categories
Problems With Negatively Worded Items
The Invariance of the Measures across Groups
The Data, the Model, and the Residuals
Expectations of Variation
Fit, Misfit, and Interpretation
Fit: Issues for Resolution
Principal Components Analysis of Rasch Residuals: The BLOT as an Exemplar
One Dimension, Two Dimensions, Three Dimensions, More?
A Further Investigation: BLOT and PRTIII
Additive Conjoint Measurement (ACM)
True Score Theory, Latent Traits, and Item Response Theory
Would You Like an Interval Scale With That?
Model Assumptions and Measurement Requirements
The Rasch Model and Progress of Science
Back to the Beginning and Back to the End
Appendix A: Getting Started
Appendix B: Technical Aspects of the Rasch Model
Appendix C: Going All the Way
From a previous edition:
"The tiresome debate about Rasch vs. IRT is over – if you want to construct valid measurements from uncertain observations you need to understand and learn how to use Rasch measurement. Bond and Fox is your huckleberry – read it and get to work!" – Robert W. Massof, Johns Hopkins University School of Medicine, USA
"Bond & Fox's book is a must read for anyone interested in measurement. This book is my go-to for introducing graduate students to the Rasch model." – Kelly D. Bradley, University of Kentucky, USA
"The authors have successfully made sophisticated measurement theory into feasible practice for practitioners by providing clear and intuitive explanations, numerous examples, and nice computer outputs. It is a textbook that I have used and will continue to use in the future." – Wen Chung Wang, Hong Kong Institute of Education, Hong Kong
"The Rasch model represents modern measurement theory at its best … Rasch models are used around the world to create psychometrically defensible scales and tests. Bond and Fox provide an accessible introduction to the Rasch model that describes the logic and essential importance of fundamental measurement in the human sciences." – George Engelhard, Jr., The University of Georgia, USA