2 edition of Extending classical test theory to the measurement of change found in the catalog.
Extending classical test theory to the measurement of change
Edward F. O"Connor
by Center for the Study of Evaluation, UCLA Graduate School of Education in Los Angeles
Written in English
Bibliography: leaves 38-40.
|Statement||by Edward F. O"Connor, Jr.|
|Series||UCLA Graduate School of Education. Center for the Study of Evaluation. CSE report no. 60, CSE report ;, no. 60.|
|LC Classifications||LB1131 .C2553 no. 60, LB3051 .C2553 no. 60|
|The Physical Object|
|Number of Pages||44|
|LC Control Number||70635158|
This chapter introduces reliability within the framework of the classical test theory (CTT) model, which is then extended to generalizability (G) theory. In Chapter 7, we’ll learn about reliability within the item response theory model. These theories all involve measurement models, sometimes referred to as latent variable models, which are. Factor analysis as well as the major extensions and alternatives to classical test theory, generalizability theory and item response theory (latent trait theory), are briefly introduced. This course is intended to equip students to read the literature in their own substantive areas more critically, to use tests more intelligently in research.
The authors' development of IRT builds on the foundations of classical test theory, nonlinear factor analysis, and generalized linear models. Using these foundational concepts, the authors then explain IRT models, estimation via maximum likelihood, item characteristic curves, and information functions. Classical test theory is a body of related psychometric theory that predict outcomes of psychological testing such as the difficulty of items or the ability of test-takers. Generally speaking, the aim of classical test theory is to understand and improve the reliability of psychological tests.. Classical test theory may be regarded as roughly synonymous with true score theory.
Item-response theory (IRT) appears to be the currently prevailing paradigm within the psychometric theory. However, this is only partially reflected in the psy-chometric practice: with an important exception of educational measurement, most psychological measuring instruments still appear to be based on the classical test theory (CTT). Classical test theory is a traditional quantitative approach to testing the reliability and validity of a scale based on its items. In the context of PRO measures, classical test theory assumes that each observed score (X) on a PRO instrument is a combination of an underlying true score (T) on the concept of interest and unsystematic (i.e Cited by:
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This book is an EXCELLENT graduate-level treatment of measurement and test theory. Crocker and Algina have a very readable style that makes test theory and the accompany statistics nonthreatening.
Their chapters are all strongly grounded in the history of psychometrics and the reader always has a sense of how various approaches and theories Cited by: Classical test theory may be regarded as roughly synonymous with true score theory.
The term "classical" refers not only to the chronology of these models but also contrasts with the more recent psychometric theories, generally referred to collectively as item response theory, which sometimes bear the appellation "modern" as in "modern latent.
using both approaches in analyzing a given chemistry test data. Classical Test Theory Classical test theory is regarded as the “true score theory.” The theory starts from the assumption that systematic effects between responses of examinees are due only to variation in ability of Size: KB.
Classical Test Theory (CTT), also known as the true score theory, refers to the analysis of test results based on test scores. The statistics produced under CTT include measures of item difficulty, Cited by: 2.
Basics of Classical Test Theory Theory and Assumptions Types of Reliability Example Classical Test Theory Classical Test Theory (CTT) – often called the “true score model” Called classic relative to Item Response Theory (IRT) which is a more modern approach CTT describes a set of psychometric procedures used to test items and scales.
The measurement models better known and used currently are mentioned, the Classical Test Theory (CTT), and Item Response Theory (IRT), including the Rasch Model. "Psychological Testing by Theresa J. Kline is an accessible, easy-to-read book that effectively communicates the current concepts, trends, and controversies in the field of psychological testing.
Readers are provided with an in-depth analysis of psychometrics in a format that will keep their attention and that they will be able to relate to the significance of psychological testing across. Comparison of Classical Test Theory and Item Response Theory in Individual Change Assessment Article in Applied Psychological Measurement 40(8) August.
Measurement is the process of quantifying the characteristics of a person or object. Theories of measurement help to explain measurement results (i.e., scores), thereby providing a rationale for how they are interpreted and treated mathematically and statistically.
Classical test theory (CTT) is a measurement theory used primarily in psychology, education, and related fields. This idea and a set of procedures that implement it are the essence of Classical Test Theory (CTT).
This chapter examines underlying principles of CTT and how test developers use it to achieve measurement, as they have defined this by: Objective. To provide comparisons and a worked example of item- and scale-level evaluations based on three psychometric methods used in patient-reported outcome development—classical test theory (CTT), item response theory (IRT), and Rasch measurement theory (RMT)—in an analysis of the National Eye Institute Visual Functioning Questionnaire (VFQ).Cited by: Classical Test Theory (CTT) and Item-Response Theory (IRT) Classical test theory (CTT) and item-response theory (IRT) are testing item assessment approaches.
Kline () suggests CTT is. Classical Test Theory Assumptions, Equations, Limitations, and Item Analyses C lassical test theory (CTT) has been the foundation for measurement theory for over 80 years. The conceptual foundations, assumptions, and extensions of the basic premises of CTT have allowed for the development of some excellent psychometrically sound scales.
Package ‘CTT’ Septem Type Package Title Classical Test Theory Functions Version Date Author John T. Willse Maintainer John T. Willse Description A collection of common test and item analyses from a classical test theory (CTT) frame-work. Analyses can be applied to both dichotomous and File Size: KB.
The classical measurement theory was dominant in science until the late s. Then it was challenged by the modern measurement theory, which began to be adopted in accounting in the s. The adop - tion was superficial though.
The terminological shift from valuation to measurement seems to have been the only significant Size: KB. 31 Classical (Psychometric) Test Theory Introduction One of the most striking and challenging phenomena in the Social Sciences is the unreliability of its measurements: Measuring the same attribute twice often yields two different results.
If the same measurement instrument is File Size: KB. CONTENTS UNIT I Introduction to Measurement Theory Chapter 1 What Is Test Theory. 3 Chapter 2 Chapter 3 Chapter 4 Problems in Measurement of Psychological Constructs 5 Test Theory as a Discipline 7 Organization of This Text 12 Summary 13 Exerci es 14 S tistical Concepts for Test Theory 16 Test Scar s as Discrete Variables for Finite Populations.
Classical Test Theory vs. Item Response Theory in Automated Assembly of Parallel Test Forms Lin 5 JTLA The forms would be equitable in terms of fairness to candidates, and test security problems would be manageable.
As computer technology becomes more prevalent, pre-equated parallel test forms can be obtained efficientlyFile Size: KB. The classical theory of electromagnetic radiation can explain some of these characteristics but not all of them.
Credit for solving this problem goes to Einstein who, inrefined and extended the ideas Planck used to explain the black body radiation spectrum and assumed that 'light consists of quanta of energy, called photons'.
Classical test analysis also typically includes a measure for the reliability of scores (i.e., Cronbach Alpha) and difficulty of the test.
Advantages of Classical Test Analysis Several benefits are obtainable through the application of good instructional objectives and item writing using classical test Size: 63KB. Classical test theory (CTT) has been widely used in the development, characterization, and sometimes selection of outcome measures in clinical trials.
That is, qualities of outcomes, whether administered by clinicians or representing patient reports, are often describe in terms of “validity” and “reliability”, two features that are Cited by: Classical Test Theory and the Measurement of Reliability Whether discussing ability, aﬀect, or climate change, as scientists we are interested in the relationships between our theoretical constructs.
We recognize, however, that our measure-ments are not perfect and that any particular observation has some unknown amount of errorFile Size: 1MB.What is Test Theory? Test theory is essentially the collection of mathematical concepts that formalize and clarify certain questions about constructing and using tests, and then provide methods for answering them (McDonald,p.