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Biblos-e Archivo
Article . 2007
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Aplicación del estadístico π* de bondad de ajuste a modelos de estructura latente

Application of the π* goodness-of-fit index to latent structure models
Authors: Revuelta Menéndez, Javier; Kessel, Dominique;

Aplicación del estadístico π* de bondad de ajuste a modelos de estructura latente

Abstract

Testing model fit for latent structure models (latent trait models and latent class models) is difficult because of the lack of goodnessof-fit statistics with a known distribution. This paper describes the application of the π* goodness-offit statistic to latent structure models. The statistic π* is based on the concept of latent classes and has a natural interpretation when applied to these models. This statistic assumes that the population is made up of several classes that follow a parametric model, and a residual class outside the model. The value of π* is the population proportion in the residual class. This paper describes the estimation algorithms of π* for latent trait and latent class models and an empirical example with a scale of study habits. There are two latent classes in these data: bad and regular students, which are related to the student’s responsibility

Existen pocos estadísticos de bondad de ajuste aplicables a modelos de estructura latente. En este artículo se describe la aplicación del estadístico π*, que se basa en el concepto de clases latentes, por lo que su interpretación resulta natural en este tipo de modelos. El estadístico π* asume que la población está dividida en varias clases que siguen un modelo paramétrico, más una clase residual fuera del modelo. Se define π* como la proporción de la población en la clase residual. En el artículo se describen los algoritmos de estimación de π* en modelos de rasgo y clase latente, y se muestra un ejemplo con datos reales procedentes de una escala de hábitos de estudio. Se ha encontrado que hay una clase de malos y otra de regulares estudiantes, las cuales se relacionan con un criterio de responsabilidad

Country
Spain
Related Organizations
Keywords

Goodness of fit, Statistics, Mathematical modeling, Statistical estimation, Frequency distribution, Algorithms, Psicología

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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