[Forum SIS] Avviso di seminario: Lauro a DISMEQ (Dipartimento di Statististica e Metodi Quantitativi, Milano-Bicocca)

[Fulvia Pennoni]

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Dipartimento di Statistica e Metodi Quantitativi
Via Bicocca degli Arcimboldi, 8 - 20126 Milano
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“Non symmetrical approach to component-based SEM”

Prof. Carlo Lauro
University of Naples “Federico II”, Naples, Italy

Mercoledì  21 Ottobre ore 14.30  Ed. U7  IV piano  (stanza 4064)
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Abstract:

Structural Equation Modeling (SEM) is a multivariate analysis technique 
that allows us to analyze relationships among several blocks of observed 
variables.
PLS-PM has some inconsistencies in terms of coherence with the direction 
of the relationships specified in the structural model (i.e., the 
dependence relationships between LVs).
PLSPM algorithm analyzes relationships between blocks symmetrically and 
misses to distinguish between dependent and explanatory blocks. As a 
consequence, there is often a difference between what PLS-PM wants to 
model and what is actually computed by the PLSPM algorithm.
We propose a new algorithm that takes into account explicitly the 
directions of relationships in the structural model, based on the 
maximization of the ex-plained variance of the MVs of the endogenous 
blocks by the components of the explanatory blocks.
The new approach is more suitable for prediction purposes. As a measure 
of the quality of the global model we propose a goodness of prediction 
index based on redundancy criterion and prediction capability.

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Si allega la locandina.

Cordiali saluti

Fulvia Pennoni

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