This is the program for the 2010 Joint Statistical Meetings in Vancouver, British Columbia.
Abstract Details
Activity Number:
|
288
|
Type:
|
Topic Contributed
|
Date/Time:
|
Tuesday, August 3, 2010 : 8:30 AM to 10:20 AM
|
Sponsor:
|
Social Statistics Section
|
Abstract - #307296 |
Title:
|
The Inextricability of Reliability and Interfactor Correlation
|
Author(s):
|
Peter H. Westfall and Kevin S.S. Henning*+
|
Companies:
|
Texas Tech University and Texas Tech University
|
Address:
|
, Lubbock, TX, 79409-2101,
|
Keywords:
|
confirmatory factor analysis ;
fit statistics ;
latent variable ;
measurement error ;
structural equation models
|
Abstract:
|
This article shows how interfactor correlation is affected by error correlations. Theoretical and practical justifications for error correlations are given, and a new equivalence class of models is presented to explain the relationship between interfactor correlation and error correlations. The class allows simple, parsimonious modeling of error correlations via pre-specifying reliabilities. Within the class, the correlation between latent factors can be as high as 1.0, and as low as the correlation between certain manifest component scores. The models are indistinguishable in terms of parameter parsimony, identifiability, and fit statistics, implying that interfactor correlation is not identifiable within the class. The existence of the class is problematic for psychometric measurement, since estimates of interfactor correlation form the foundation of much of the literature.
|
The address information is for the authors that have a + after their name.
Authors who are presenting talks have a * after their name.
Back to the full JSM 2010 program
|
2010 JSM Online Program Home
For information, contact jsm@amstat.org or phone (888) 231-3473.
If you have questions about the Continuing Education program, please contact the Education Department.