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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: Thousand Oaks (California) : Sage Publications, cop. 2003.
Edition/Format:   Print book : EnglishView all editions and formats

This text offers a practical method for developing tests, validating instruments, and reporting outcomes through the use of factor analysis. Ideal for graduate level nursing students, this book is  Read more...


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Document Type: Book
All Authors / Contributors: Marjorie A Pett; Nancy R Lackey; John J Sullivan
ISBN: 076191949X 9780761919490 0761919503 9780761919506
OCLC Number: 645140899
Description: xvi, 348 p
Contents: 1. An Overview of Factor Analysis Characteristics of Factor Analysis Exploratory Vs. Confirmatory Factor Analysis Assumptions of Exploratory Factor Analysis Historical Developments of Factor Analysis Uses of Factor Analysis in Health Care Research Decision-Making Process in Exploratory Factor Analysis2. Designing and Testing the Instrument Types of Measurement and Frameworks The Use of Latent Variables in Instrument Development Identifying Empirical Indicators of Latent Variables Using Qualitative Research Methods to Identify Empirical Indicators Additional Qualitative Approaches to Identifying Empirical Indicators Development of the Instrument Scoring the Instrument Pilot Testing the Instrument Determining the Number of Subjects3. Assessing the Characteristics of Matrices Characteristics and Types of Matrices Tests of Matrices Review of the Process4. Extracting the Initial Factors Evaluating the Correlation Matrix Sources of Variance in Factor Analysis Models Determining the Factor Extraction Method Selecting the Number of Factors to Retain Comparing the Two-Factor Solution Using PCA and PAF5. Rotating the Factors Achieving a Simple Structure Types of Rotations Mapping Factors in Geometric Space Orthogonal Rotations Oblique Rotations Comparing the Orthogonal and Oblique Solutions Advantages and Disadvantages of the Oblique Solution Choosing Between Orthogonal and Oblique Rotations Summary of the Process of Rotations6. Evaluating and Refining the Factors Evaluating and Refining the Factors Assessing the Reliability of an Instrument Evaluating the Internal Consistency of an Instrument Estimating the Effects on Reliability of Increasing or Decreasing Items Cronbach's Coefficient Alpha Assessing Reliability Using Cronbach's Alpha: A Computer Example Two Additional Reliability Estimates: Temporal Stability and Equivalence7. Interpreting Factors and Generating Factor Scores Interpreting the Factors Naming the Factors Interpreting and Naming the Four Factors on the CGTS Scale Determining Composite Factor Scores8. Reporting and Replicating the Results When to Report the Results What to Include in the Report An Exemplar of a Published Report Replicating the Factors in Other Studies ConclusionsAppendix A: Concerns About Genetic Testing ScaleAppendix B: SAS Commands and Generate OutputAppendix C: Output for 20-item CGTS ScaleAppendix D: Tables for the Chi-Square and Normal DistributionsAppendix E: Unraveling the Mystery of Principal Component ExtractionReferencesIndexAbout the Authors
Responsibility: Marjorie A. Pett, Nancy R. Lackey, John J. Sullivan.


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