Best practices in exploratory factor analysis:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
[Charleston, SC]
[CreateSpace]
[2014]
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| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | X, 139 Seiten |
| ISBN: | 9781500594343 |
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Datensatz im Suchindex
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| adam_text | Titel: Best practices in exploratory factor analysis
Autor: Osborne, Jason W
Jahr: 2014
TABLE OF CONTENTS
DEDICATION.............................................................................III
TABLE OF CONTENTS...............................................................................IV
ACKNOWLEDGMENTS........................................................................VII
1 INTRODUCTION TO EXPLORATORY FACTOR ANALYSIS......................1
The difference between Principal Components Analysis and Exploratory
Factor Analysis.................................................................................1
Steps to follow when conducting EFA..............................................................................4
Chapter 1 Summary.................................................................................7
2 EXTRACTION AND ROTATION...........................................................................9
Choosing an extraction technique......................................................................................9
Three pedagogical examples..................................................................................11
Does extraction method matter?......................................................................................14
Deciding how many factors should be extracted and retained..........................18
Example 1: Engineering data..............................................................................................20
Example 2: Self-Description Questionnaire data.....................................................25
Example 3: Geriatric Depression Scale data...............................................................28
Rotation in EFA.........................................................................................31
Factor matrix vs. pattern matrix vs. structure matrix..........................................34
Rotation example 1: Engineering data...........................................................................35
Rotation example 2- Self-Description Questionnaire data.................................38
Rotation example 3: Geriatric Depression Scale data...........................................38
Standard practice in social science.................................................................................41
Chapter 2 Summary....................................................................................43
Chapter 2 Exercises...................................................................................44
3 SAMPLE SIZE MATTERS.......................................................................................46
Published sample size guidelines.......................................................................................46
Are SUBJECT: ITEM RATIOS AN IMPORTANT PREDICTOR OF GOOD EFA ANALYSES?........47
Size matters two different ways......................................................................................49
COSTELLO AND OSBORNE [2005) ANALYSES..........................................................................49
Chapter 3 Summary: Does sample size matter in EFA?.............................................51
Chapter 3 Exercises.....................................................................................52
4 REPLICATION STATISTICS IN EFA.................................................................54
Why replication is important in EFA...............................................................................54
Let s bring replication to EFA............................................................................................55
Procedural aspects of replicability analysis..............................................................56
Quantifying Replicability in Exploratory Factor Analysis..................................56
An example of replication analysis..................................................................................58
Chapter 4 Summary: Is replication important in EFA?...........................................62
Chapter 4 Exercises..................................................................................63
5 BOOTSTRAP APPLICATIONS IN EFA..........................................................65
Some background on resampling........................................................................................65
What is bootstrap resampling analysis?.......................................................................66
What can bootstrap resampling do, and what should it not be used for?.....67
A SIMPLE BOOTSTRAP EXAMPLE IN ANOVA............................................................................68
Confidence intervals for statistics in EFA..................................................................70
Bootstrap example 1: Engineering data........................................................................70
Bootstrap example 2: Marsh SDQ data..........................................................................74
Chapter 5 Summary..................................................................................76
Chapter 5 Exercises...............................................................................77
SPSS Syntax to align absolute values of factor loadings into columns for
BOOTSTRAPPING............................................................................80
6 DATA CLEANING AND EFA................................................................................83
TWO TYPES OF OUTLIERS IN EFA: INDIVIDUAL CASES AND VARIABLES.............................83
Response sets and unexpected patterns in the data...........................................84
Commonly discussed response sets....................................................................................85
Is RANDOM RESPONDING TRULY RANDOM?..............................................................................86
Detection of random responding......................................................................................87
An example of the effect of random or constant responding.............................89
Data cleaning..................................................................................91
Missing data.......................................................................................91
Chapter 6 Conclusions.................................................................................94
7 ARE FACTOR SCORES A GOOD IDEA?.........................................................96
Pedagogical Example: Engineering data.......................................................................97
Proper vs. improper factor scores....................................................................................98
How UNSTABLE ARE FACTOR SCORES?.....................................................................................98
What are modern alternatives?.......................................................................................99
Chapter 7 Summary.....................................................................................100
8 HIGHER ORDER FACTORS...............................................................................102
Did the initial solution get it right?............................................................................103
Mechanics of performing second-order factor analysis in SPSS.....................103
Replication example of second-order factor...........................................................105
Chapter 8 Summary................................................................................107
Chapter 8 exercises................................................................................108
Appendix 8A: Syntax for performing higher-order EFA......................................109
9 AFTER THE EFA: INTERNAL CONSISTENCY.........................................112
What is Cronbach s alpha (and what is it not)?..............................................113
Factors that influence alpha..........................................................................................115
What is good enough for alpha?.................................................................................116
Would error-free measurement make a real difference?..................................116
Sample size and the precision/stability of alpha-empirical confidence
INTERVALS...............................................................................118
Does bootstrapping small samples provide valuable information?....123
Chapter 9 Summary...............................................................................125
Chapter 9 exercises..............................................................................126
10 SUMMARY AND CONCLUSIONS..........................................................128
ABOUT THE AUTHOR....................................................................................132
REFERENCES...............................................................................134
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| spelling | Osborne, Jason W. Verfasser (DE-588)1037994396 aut Best practices in exploratory factor analysis Jason W. Osborne [Charleston, SC] [CreateSpace] [2014] X, 139 Seiten txt rdacontent n rdamedia nc rdacarrier HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029716002&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Osborne, Jason W. Best practices in exploratory factor analysis |
| title | Best practices in exploratory factor analysis |
| title_auth | Best practices in exploratory factor analysis |
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| title_full | Best practices in exploratory factor analysis Jason W. Osborne |
| title_fullStr | Best practices in exploratory factor analysis Jason W. Osborne |
| title_full_unstemmed | Best practices in exploratory factor analysis Jason W. Osborne |
| title_short | Best practices in exploratory factor analysis |
| title_sort | best practices in exploratory factor analysis |
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