A global Goodness–of–Fit index for PLS structural equation
نویسندگان
چکیده
Riassunto: Scopo di questo lavoro è proporre un indice globale di bontà dell’adattamento per i modelli ad equazioni strutturali stimati mediante il metodo PLS. Al momento gli indici comunemente utilizzati in questo ambito sono la comunalità (bontà di adattamento del modello esterno) e la ridondanaza (qualità del modello interno). Si propone un indice che, alla stregua del test del chi-quadro e dei test ad esso collegati disponibili nel modello classico LISREL stimato mediante la massima verosimiglianza, fornisca una misura globale della bontà di adattamento del modello che tenga conto di entrambi gli aspetti, misurati invece separatamente dalla comunalità e dalla ridondanza. E’ inoltre suggerita una procedura di validazione non parametrica per l’indice proposto. Un’applicazione su dati reali è infine presentata.
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تاریخ انتشار 2004