A Cautionary Note to the PTAB: Proppant, Joinder, and PTAB’s Rulemaking-by-Adjudication — How to Avoid Brazen Defiance of the APA and a Rerun of Aqua Products

2018 ◽  
Author(s):  
David Boundy
Keyword(s):  
Cautionary Note

A Cautionary Note on Incremental Fit Indices Reported by LISREL

Methodology ◽  
2005 ◽  
Vol 1 (2) ◽  
pp. 81-85 ◽  
Author(s):  
Stefan C. Schmukle ◽  
Jochen Hardt
Keyword(s):  
Factor Analysis ◽  
Maximum Likelihood ◽  
Structural Equation ◽  
Structural Equation Models ◽  
Null Model ◽  
Likelihood Estimation ◽  
Parameter Estimates ◽  
Fit Indices ◽  
Cautionary Note ◽  
Confirmatory Factor

Abstract. Incremental fit indices (IFIs) are regularly used when assessing the fit of structural equation models. IFIs are based on the comparison of the fit of a target model with that of a null model. For maximum-likelihood estimation, IFIs are usually computed by using the χ2 statistics of the maximum-likelihood fitting function (ML-χ2). However, LISREL recently changed the computation of IFIs. Since version 8.52, IFIs reported by LISREL are based on the χ2 statistics of the reweighted least squares fitting function (RLS-χ2). Although both functions lead to the same maximum-likelihood parameter estimates, the two χ2 statistics reach different values. Because these differences are especially large for null models, IFIs are affected in particular. Consequently, RLS-χ2 based IFIs in combination with conventional cut-off values explored for ML-χ2 based IFIs may lead to a wrong acceptance of models. We demonstrate this point by a confirmatory factor analysis in a sample of 2449 subjects.

A cautionary note.

1972 ◽  
Vol 27 (8) ◽  
pp. 777-777
Author(s):  
James M. Peterson
Keyword(s):  
Cautionary Note

Dominance Thresholds: A Cautionary Note

2014 ◽  
Author(s):  
Douglas A. Herman ◽  
Shawn W. Ulrick ◽  
Seth B. Sacher
Keyword(s):  
Cautionary Note
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