Psychometrics An Introduction

ISBN-10: 1412927609
ISBN-13: 9781412927604
Edition: 2008
List price: $128.00 Buy it from $14.13 Rent it from $20.90
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Description: Psychometrics deals with the methods and procedures used to measure psychological, intellectual, or behavioral characteristics of people. In this text, the authors focus on conceptual understanding of psychometric issues such as validity and  More...

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Book details

List price: $128.00
Copyright year: 2008
Publisher: SAGE Publications, Incorporated
Publication date: 10/19/2007
Binding: Hardcover
Pages: 368
Size: 7.00" wide x 10.00" long x 1.00" tall
Weight: 1.782
Language: English

Psychometrics deals with the methods and procedures used to measure psychological, intellectual, or behavioral characteristics of people. In this text, the authors focus on conceptual understanding of psychometric issues such as validity and reliability and on purpose rather than procedure, or on the 'why' rather than the 'how to.' Their goalis to introduce psychometric principles at a level that is deeper and more focused than found inintroductory undergraduatetesting and measurement texts butthat ismore intuitive than traditionally found in the more technical publications intended for graduate level psychometrics and measurement courses. Many students who take such courses come from applied psychological, educational, or human services programs and may enter the course with little formal training in the area, weak statistical background, and career goals of working with people rather than designing or researchingtests and measures. By emphasizing conceptual developmentover mathematical proofs and byfocusing onpractical significance, this book assists such students in appreciating how measurement problems can be addressed and why it is important to address them.

R. Michael Furr is Professor of Psychology and McCulloch Faculty Fellow at Wake Forest University, where he received the 2012 Award for Excellence in Research. His methodological work focuses on the measurement of similarity between psychological profiles, on the measurement of behavior, and on contrast analysis. His substantive research focuses on personality judgment and on the links between personality, situational forces, and behavior. He is a former associate editor of the Journal of Research in Personality , a former executive editor of the Journal of Social Psychology , and a consulting editor for several other scholarly journals. He has taught graduate and undergraduate courses in psychometrics, psychological testing, personality psychology, statistics, and research methods at Appalachian State University and Wake Forest University.

Verne R. Bacharach is professor of psychology at Appalachian State University. He has held faculty appointments at the University of Alabama, Peabody College of Vanderbilt University, and Acadia University in Nova Scotia and has chaired the departments at Appalachian State and Acadia. He has taught undergraduate and graduate courses in statistics, tests and measurements, and research methods for nearly 40 years. He has a long journal publication history of research and review articles. Dr. Bacharach obtained a Ph.D. in experimental psychology from the University of Kansas in 1971.

Psychometrics and the Importance of Psychological Measurement
Observable Behavior and Unobservable Attributes
Psychological Tests: Definition and Types
Psychometrics
Challenges to Measurement in Psychology
Theme: The Importance of Individual Differences
Scaling
Fundamental Issues and Numbers
Units of Measurement
Additivity and Counting
Four Scales of Measurement
Summary
Suggested Readings
Individual Differences and Correlations
The Nature of Variability
Importance of Individual Differences
Variability and Distribution of Scores
Distribution Shapes and Normal Distributions
Quantifying the Association Between Distributions
Variance of "Composite Scores"
Interpreting Test Scores
Test Norms
Summary
Suggested Readings
Test Dimensionality and Factor Analysis
Test Dimensionality
Factor Analysis: Examining the Dimensionality of a Test
Summary
Suggested Readings
Reliability: Conceptual Basis
Overview of Reliability and Classical Test Theory
Observed Scores, True Scores and Measurement Error
Variances in Observed Scores, True Scores and Error Scores
Four Ways to Think of Reliability
Reliability and the Standard Error of Measurement
Parallel Tests
Summary
Empirical Estimates of Reliability
Alternate Forms Reliability
Test-Retest Reliability
Internal Consistency Reliability
Factors Affecting the Reliability of Test Scores
Sample Homogeneity and Reliability Generalization
Reliability of Difference Scores
Summary
Importance of Reliability
Behavioral Research
Applied Behavioral Practice: Evaluation of an Individual's Test Score
Test Construction and Refinement
Summary
Suggested Readings
Validity: The Conceptual Basis
What is Validity?
Validity Evidence: Test Content
Validity Evidence: Internal Structure of the Test
Validity Evidence: Response Processes
Validity Evidence: Associations with Other Variables
Validity Evidence: Consequences of Testing
Other Perspectives on Validity
Contrasting Reliability and Validity
The Importance of Validity
Summary
Suggested Readings
Validity: Estimating and Evaluating Convergent and Discriminant Validity
Methods for Evaluating Convergent and Discriminant Validity
Factors Affecting a Validity Coefficient
Interpreting a Validity Coefficient
Summary
Suggested Readings
Response Biases
Types of Response Biases
Methods for Coping with Response Biases
Response Biases, Response Sets, and Response Styles
Summary
Suggested Readings
Test Bias
Why Worry about Test Score Bias
Detecting Construct Bias: Internal Evaluation of a Test
Detecting Predictive Bias: External Evaluation of a Test
Summary
Suggested Readings
Generalizability Theory
Multiple Facets of Measurement
Generalizability and Variance Components
G Studies and D Studies
Conducting and Interpreting Generalizability Theory Analysis: A One-facet
Design
Conducting and Interpreting Generalizability Theory Analysis: A Two-facet
Design
Other Measurement Designs
Summary
Footnote
Suggested Readings
Item Response Theory and Rasch Models
Basics of IRT
IRT Measurement Models
An Example of IRT: A Rasch Model
Item and Test Information
Applications of IRT
Summary
Suggested Readings

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