Making Sense of Factor Analysis

The Use of Factor Analysis for Instrument Development in Health Care Research

Author: Marjorie A. Pett,Nancy R. Lackey,John J. Sullivan

Publisher: SAGE

ISBN: 0761919503

Category: Education

Page: 348

View: 658

Making Sense of Factor Analysis: The Use of Factor Analysis for Instrument Development in Health Care Research presents a straightforward explanation of the complex statistical procedures involved in factor analysis. Authors Marjorie A. Pett, Nancy M. Lackey, and John J. Sullivan provide a step-by-step approach to analyzing data using statistical computer packages like SPSS and SAS. Emphasizing the interrelationship between factor analysis and test construction, the authors examine numerous practical and theoretical decisions that must be made to efficiently run and accurately interpret the outcomes of these sophisticated computer programs.
Posted in Education

Making Sense of Factor Analysis

The Use of Factor Analysis for Instrument Development in Health Care Research

Author: Marjorie A. Pett,Nancy R. Lackey,John J. Sullivan

Publisher: SAGE Publications, Incorporated

ISBN: 9780761919490

Category: Social Science

Page: 368

View: 3183

Making Sense of Factor Analysis: The Use of Factor Analysis for Instrument Development in Health Care Research presents a straightforward explanation of the complex statistical procedures involved in factor analysis. Authors Marjorie A. Pett, Nancy M. Lackey, and John J. Sullivan provide a step-by-step approach to analyzing data using statistical computer packages like SPSS and SAS. Emphasizing the interrelationship between factor analysis and test construction, the authors examine numerous practical and theoretical decisions that must be made to efficiently run and accurately interpret the outcomes of these sophisticated computer programs.
Posted in Social Science

Exploratory Factor Analysis

Author: Leandre R. Fabrigar,Duane T. Wegener

Publisher: Oxford University Press

ISBN: 0199734178

Category: Medical

Page: 159

View: 2097

This book provides a non-mathematical introduction to the theory and application of Exploratory Factor Analysis. Among the issues discussed are the use of confirmatory versus exploratory factor analysis, the use of principal components analysis versus common factor analysis, and procedures for determining the appropriate number of factors.
Posted in Medical

Principal Components Analysis

Author: George H. Dunteman

Publisher: SAGE

ISBN: 9780803931046

Category: Mathematics

Page: 96

View: 2511

For anyone in need of a concise, introductory guide to principal components analysis, this book is a must. Through an effective use of simple mathematical-geometrical and multiple real-life examples (such as crime statistics, indicators of drug abuse, and educational expenditures) -- and by minimizing the use of matrix algebra -- the reader can quickly master and put this technique to immediate use.
Posted in Mathematics

Nonparametric Statistics for Health Care Research

Statistics for Small Samples and Unusual Distributions

Author: Marjorie A. Pett

Publisher: SAGE Publications

ISBN: 1483324524

Category: Social Science

Page: 472

View: 5609

What do you do when you realize that the data set from the study that you have just completed violates the sample size or other requirements needed to apply parametric statistics? Nonparametric Statistics for Health Care Research by Marjorie A. Pett was developed for such scenarios—research undertaken with limited funds, often using a small sample size, with the primary objective of improving client care and obtaining better client outcomes. Covering the most commonly used nonparametric statistical techniques available in statistical packages and on open-resource statistical websites, this well-organized and accessible Second Edition helps readers, including those beyond the health sciences field, to understand when to use a particular nonparametric statistic, how to generate and interpret the resulting computer printouts, and how to present the results in table and text format.
Posted in Social Science

Factor Analysis and Related Methods

Author: Roderick P. McDonald

Publisher: Psychology Press

ISBN: 1317768779

Category: Psychology

Page: 272

View: 6939

Factor Analysis is a genetic term for a somewhat vaguely delimited set of techniques for data processing, mainly applicable to the social and biological sciences. These techniques have been developed for the analysis of mutual relationships among a number of measurements made on a number of measurable entities. In the broad sense, factor analysis comprises a number of statistical models which yield testable hypotheses -- hypotheses that may confirm or disconfirm in terms of the usual statistical procedures for making tests of significance. It also comprises a number of simplifying procedures for the approximate description of data, which do not in any sense constitute disconfirmable hypotheses, except in the loose sense that they supply approximations to the data. In literature, the two types of analysis have often been confused. This book clarifies the concepts of factor analysis for students or professionals in the social sciences who wish to know the technique, rather than the mathematics, of factor theory. Mathematical concepts are described to have an intuitive meaning for the non-mathematical reader. An account of the elements of matrix algebra, in the appendix, and the (mathematical) notes following each chapter will help the reader who wishes to receive a more advanced treatment of the subject. Factor Analysis and Related Methods should prove a useful text for graduate and advanced undergraduate students in economics, the behavioral sciences, and education. Researchers and practitioners in those fields will also find this book a handy reference.
Posted in Psychology

Confirmatory Factor Analysis for Applied Research, Second Edition

Author: Timothy A. Brown

Publisher: Guilford Publications

ISBN: 146251779X

Category: Science

Page: 462

View: 1883

This accessible book has established itself as the go-to resource on confirmatory factor analysis (CFA) for its emphasis on practical and conceptual aspects rather than mathematics or formulas. Detailed, worked-through examples drawn from psychology, management, and sociology studies illustrate the procedures, pitfalls, and extensions of CFA methodology. The text shows how to formulate, program, and interpret CFA models using popular latent variable software packages (LISREL, Mplus, EQS, SAS/CALIS); understand the similarities ...
Posted in Science

Factor Analysis

Statistical Methods and Practical Issues

Author: Jae-On Kim,Charles W. Mueller

Publisher: SAGE

ISBN: 9780803911666

Category: Reference

Page: 88

View: 3419

Describes various commonly used methods of initial factoring and factor rotation. In addition to a full discussion of exploratory factor analysis, confirmatory factor analysis and various methods of constructing factor scales are also presented.
Posted in Reference

Factor analysis

Healing an ailing model

Author: Ertel, Suitbert

Publisher: Universitätsverlag Göttingen

ISBN: 3863951336

Category: Psychology

Page: 160

View: 7572

Exploratory factor analysis (EFA) is a statistical tool for digging out hidden factors which give rise to the diversity of manifest objectives in psychology, medicine and other sciences. EFA had its heyday as psychologist Leon Thurstone (1935 and 1948) based EFA on what he called the “principle of simple structure” (SS). This principle, however, was erroneous from the beginning what remained unrecognized despite subsequent inventions of more sophisticated statistical tools such as confirmatory analysis and structural equation modeling. These methods are highly recommended today as tolerable routes to model complexities of observation. But they did not remove the harmful errors that SS had left behind. Five chapters in this book demonstrate and explain the trouble. In chapter 2 the ailment of SS is healed by introducing an unconventional factor rotation, called Varimin. Varimin gives variables of an analysis an optimal opportunity to manifest functional interrelations underlying correlational observations. Ten applications of Varimin (in chapter 2) show that its results are superior to results obtained by the conventional Varimax procedure. Further applications are presented for sports achievements (chapter 3), intelligence (chapter 4), and personality (chapter 5). If Varimin keeps on standing the tests new theoretical building blocks will arise together with conceptual networks promoting a better understanding of the domains under study. Readers may check this prognosis by themselves using the statistical tool (Varimin) which is provided by open access in the internet.
Posted in Psychology

Content Analysis

An Introduction to Its Methodology

Author: Klaus Krippendorff

Publisher: SAGE Publications

ISBN: 1506395643

Category: Language Arts & Disciplines

Page: 472

View: 8015

What matters in people’s social lives? What motivates and inspires our society? How do we enact what we know? Since the first edition published in 1980, Content Analysis has helped shape and define the field. In the highly anticipated Fourth Edition, award-winning scholar and author Klaus Krippendorff introduces you to the most current method of analyzing the textual fabric of contemporary society. Students and scholars will learn to treat data not as physical events but as communications that are created and disseminated to be seen, read, interpreted, enacted, and reflected upon according to the meanings they have for their recipients. Interpreting communications as texts in the contexts of their social uses distinguishes content analysis from other empirical methods of inquiry. Organized into three parts, Content Analysis first examines the conceptual aspects of content analysis, then discusses components such as unitizing and sampling, and concludes by showing readers how to trace the analytical paths and apply evaluative techniques. The Fourth Edition has been completely revised to offer you the most current techniques and research on content analysis, including new information on reliability and social media. You will also gain practical advice and experience for teaching academic and commercial researchers how to conduct content analysis.
Posted in Language Arts & Disciplines

Secondhand Smoke Exposure and Cardiovascular Effects:

Making Sense of the Evidence

Author: Committee on Secondhand Smoke Exposure and Acute Coronary Events,Board on Population Health and Public Health Practice,Institute of Medicine

Publisher: National Academies Press

ISBN: 0309138396

Category: Medical

Page: 240

View: 2678

Data suggest that exposure to secondhand smoke can result in heart disease in nonsmoking adults. Recently, progress has been made in reducing involuntary exposure to secondhand smoke through legislation banning smoking in workplaces, restaurants, and other public places. The effect of legislation to ban smoking and its effects on the cardiovascular health of nonsmoking adults, however, remains a question. Secondhand Smoke Exposure and Cardiovascular Effects reviews available scientific literature to assess the relationship between secondhand smoke exposure and acute coronary events. The authors, experts in secondhand smoke exposure and toxicology, clinical cardiology, epidemiology, and statistics, find that there is about a 25 to 30 percent increase in the risk of coronary heart disease from exposure to secondhand smoke. Their findings agree with the 2006 Surgeon General's Report conclusion that there are increased risks of coronary heart disease morbidity and mortality among men and women exposed to secondhand smoke. However, the authors note that the evidence for determining the magnitude of the relationship between chronic secondhand smoke exposure and coronary heart disease is not very strong. Public health professionals will rely upon Secondhand Smoke Exposure and Cardiovascular Effects for its survey of critical epidemiological studies on the effects of smoking bans and evidence of links between secondhand smoke exposure and cardiovascular events, as well as its findings and recommendations.
Posted in Medical

Survey Scales

A Guide to Development, Analysis, and Reporting

Author: Robert L. Johnson,Grant B. Morgan

Publisher: Guilford Publications

ISBN: 1462526985

Category: Social Science

Page: 269

View: 2478

Synthesizing the literature from the survey and measurement fields, this book explains how to develop closed-response survey scales that will accurately capture such constructs as attitudes, beliefs, or behaviors. It provides guidelines to help applied researchers or graduate students review existing scales for possible adoption or adaptation in a study; create their own conceptual framework for a scale; write checklists, true-false variations, and Likert-style items; design response scales; examine validity and reliability; conduct a factor analysis; and document the instrument development and its technical quality. Advice is given on constructing tables and graphs to report survey scale results. Concepts and procedures are illustrated with "Not This/But This" examples from multiple disciplines. User-Friendly Features *End-of-chapter exercises with sample solutions, plus annotated suggestions for further reading. *"Not This/But This" examples of poorly written and strong survey items. *Chapter-opening overviews and within-chapter summaries. *Glossary of key concepts. *Appendix with examples of parametric and nonparametric procedures for group comparisons.
Posted in Social Science

Factor Analysis

Classic Edition

Author: Richard L. Gorsuch

Publisher: Routledge

ISBN: 131756488X

Category: Psychology

Page: 464

View: 414

Comprehensive and comprehensible, this classic text covers the basic and advanced topics essential for using factor analysis as a scientific tool in psychology, education, sociology, and related areas. Emphasizing the usefulness of the techniques, it presents sufficient mathematical background for understanding and applying its use. This includes the theory as well as the empirical evaluations. The overall goal is to show readers how to use factor analysis in their substantive research by highlighting when the differences in mathematical procedures have a major impact on the substantive conclusions, when the differences are not relevant, and when factor analysis might not be the best procedure to use. Although the original version was written years ago, the book maintains its relevance today by providing readers with a thorough understanding of the basic mathematical models so they can easily apply these models to their own research. Readers are presented with a very complete picture of the "inner workings" of these methods. The new Introduction highlights the remarkably few changes that the author would make if he were writing the book today. An ideal text for courses on factor analysis or as a supplement for multivariate analysis, structural equation modeling, or advanced quantitative techniques taught in psychology, education, and other social and behavioral sciences, researchers who use these techniques also appreciate this book’s thorough review of the basic models. Prerequisites include a graduate level course on statistics and a basic understanding of algebra. Sections with an asterisk can be skipped entirely if preferred.
Posted in Psychology

Introduction to Test Construction in the Social and Behavioral Sciences

A Practical Guide

Author: Joshua A. Fishman,Tomás Galguera

Publisher: Rowman & Littlefield Publishers

ISBN: 1461665582

Category: Education

Page: 176

View: 4738

Offers beginning researchers in psychology and education with limited statistics backgrounds a practical, hands-on guide to the preparation, assessment, and development of quantitative research instruments.
Posted in Education

Best Practices in Exploratory Factor Analysis

Author: Jason W. Osborne

Publisher: Createspace Independent Pub

ISBN: 9781500594343

Category: Psychology

Page: 150

View: 9710

Best Practices in Exploratory Factor Analysis (EFA) is a practitioner-oriented look at this popular and often-misunderstood statistical technique. We avoid formulas and matrix algebra, instead focusing on evidence-based best practices so you can focus on getting the most from your data. Each chapter reviews important concepts, uses real-world data to provide authentic examples of analyses, and provides guidance for interpreting the results of these analysis. Not only does this book clarify often-confusing issues like various extraction techniques, what rotation is really rotating, and how to use parallel analysis and MAP criteria to decide how many factors you have, but it also introduces replication statistics and bootstrap analysis so that you can better understand how precisely your data are helping you estimate population parameters. Bootstrap analysis also informs readers of your work as to the likelihood of replication, which can give you more credibility. At the end of each chapter, the author has recommendations as to how to enhance your mastery of the material, including access to the data sets used in the chapter through his web site. Other resources include syntax and macros for easily incorporating these progressive aspects of exploratory factor analysis into your practice. The web site will also include enrichment activities, answer keys to select exercises, and other resources. The fourth "best practices" book by the author, Best Practices in Exploratory Factor Analysis continues the tradition of clearly-written, accessible guides for those just learning quantitative methods or for those who have been researching for decades. NEW in August 2014! Chapters on factor scores, higher-order factor analysis, and reliability. Chapters: 1 INTRODUCTION TO EXPLORATORY FACTOR ANALYSIS 2 EXTRACTION AND ROTATION 3 SAMPLE SIZE MATTERS 4 REPLICATION STATISTICS IN EFA 5 BOOTSTRAP APPLICATIONS IN EFA 6 DATA CLEANING AND EFA 7 ARE FACTOR SCORES A GOOD IDEA? 8 HIGHER ORDER FACTORS 9 AFTER THE EFA: INTERNAL CONSISTENCY 10 SUMMARY AND CONCLUSIONS
Posted in Psychology

Measurement in Nursing and Health Research, Fifth Edition

Author: Dr. Carolyn F. Waltz, PhD, RN, FAAN,Dr. Ora Lea Strickland, PhD, RN, FAAN,Dr. Elizabeth R. Lenz, PhD, RN, FAAN

Publisher: Springer Publishing Company

ISBN: 0826170625

Category: Medical

Page: 632

View: 3774

Praise for the previous Edition: "This is a valuable resource for readers seeking basic to advanced information on measurement. It should be on the bookshelf of all researchers, and a requirement for graduate nursing students." Score: 100, 5 stars -- Doody's Medical Reviews "...this book is a wonderful shelf reference for nurse researcher mentors and investigators who may need to explore content or use content to design, test, select, and evaluate instruments and methods used in measuring nurse concepts and outcomes." --Clinical Nurse Specialist “Presents clearly the methodological principles for research planning in nursing with examples that facilitate the understanding of them. Excellent.” 5.0 out of 5 stars --Nursing Research This highly popular resource—written in an easy-to-read style and format-- delivers everything nurses and other health researchers need to know about designing, testing, selecting, and evaluating instruments and methods for measurement in nursing. The Fifth Edition features the most current content, strategies, and procedures available with direct applicability to nurses and health researchers engaging in interprofessional research, collaboration, education, and evidence-based practice. Five new chapters focus on challenges to using big data, evaluation and measurement in interprofessional practice and education, metrics and benchmarking in health professions education and practice, and measurement issues in translational science. The book gives particular attention to measurement issues resulting from changes in nursing, health research, and the increased emphasis on and undertaking of interprofessional research and evaluation. Presenting the material in step-by-step format, the book is designed for readers with little or no experience in measurement, statistics, or interprofessional issues. It focuses on increasing the reader’s ability to use measures that are operationalized within the context of theories and conceptual frameworks, derived from sound measurement principles and practices and adequately tested for reliability and validity. Additionally, the text provides a pragmatic account of the processes involved in all aspects of measurement. Studies conducted by nurses and researchers in varied settings illustrate the measurement processes. New to the Fifth Edition: Thoroughly updated and revised Delivers new and emerging strategies Reflects recent changes to nursing, health research, and emphasis on interprofessional research Includes five completely new chapters addressing challenges to using big data, evaluation and measurement in interprofessional practice and education, metrics and benchmarking in health professions education and practice, and measurement issues in translational science Key Features: Easy-to-read content and format Assumes no prior knowledge of measurement, statistics, or interprofessional issues Provides studies conducted by nurses and researchers in varied settings Offers a pragmatic account of the processes involved inn all aspects of measurement
Posted in Medical

The Impossible Revolution

Making Sense of the Syrian Tragedy

Author: al-Haj Saleh

Publisher: Oxford University Press

ISBN: 1787380513

Category: Political Science

Page: N.A

View: 9843

Yassin al-Haj Saleh is a leftist dissident who spent sixteen years as a political prisoner and now lives in exile. He describes with precision and fervour the events that led to Syria’s 2011 uprising, the metamorphosis of the popular revolution into a regional war, and the ‘three monsters’ Saleh sees ‘treading on Syria’s corpse’: the Assad regime and its allies, ISIS and other jihadists, and Russia and the US. Where conventional wisdom has it that Assad’s army is now battling religious fanatics for control of the country, Saleh argues that the emancipatory, democratic mass movement that ignited the revolution still exists, though it is beset on all sides. The Impossible Revolution is a powerful, compelling critique of Syria’s catastrophic war, which has profoundly reshaped the lives of millions of Syrians.
Posted in Political Science

Making Sense of Multivariate Data Analysis

An Intuitive Approach

Author: John Spicer

Publisher: SAGE

ISBN: 9781412904018

Category: Mathematics

Page: 233

View: 4447

'This book is a helpful guide to reading and understanding multivariate data analysis results in social and psychological research' --C. Y. Joanne Peng, Indiana University at Bloomington 'This book serves as a resource for readers who want to have an overall view of what encompasses multivariate analyses. The author has discussed some important issues rather philosophically (e.g., theory vs. data analysis). These points are valuable even for readers who have extensive training with multivariate analyses' --Jenn-Yun Tein, Arizona State University
Posted in Mathematics

The Honest Broker

Making Sense of Science in Policy and Politics

Author: Roger A. Pielke, Jr

Publisher: Cambridge University Press

ISBN: 1139464825

Category: Political Science

Page: N.A

View: 3511

Scientists have a choice concerning what role they should play in political debates and policy formation, particularly in terms of how they present their research. This book is about understanding this choice, what considerations are important to think about when deciding, and the consequences of such choices for the individual scientist and the broader scientific enterprise. Rather than prescribing what course of action each scientist ought to take, the book aims to identify a range of options for individual scientists to consider in making their own judgments about how they would like to position themselves in relation to policy and politics. Using examples from a range of scientific controversies and thought-provoking analogies from other walks of life, The Honest Broker challenges us all - scientists, politicians and citizens - to think carefully about how best science can contribute to policy-making and a healthy democracy.
Posted in Political Science

A Step-by-Step Approach to Using SAS for Factor Analysis and Structural Equation Modeling, Second Edition

Author: Norm O'Rourke, Ph.D., R.Psych.,Larry Hatcher, Ph.D.

Publisher: SAS Institute

ISBN: 1629592447

Category: Mathematics

Page: 444

View: 416

This easy-to-understand guide makes SEM accessible to all users. This second edition contains new material on sample-size estimation for path analysis and structural equation modeling. In a single user-friendly volume, students and researchers will find all the information they need in order to master SAS basics before moving on to factor analysis, path analysis, and other advanced statistical procedures.
Posted in Mathematics