نتایج جستجو برای: structural equations model

تعداد نتایج: 2600434  

Journal: :The annals of applied statistics 2015
Lynne Steuerle Schofield

This paper represents a methodological-substantive synergy. A new model, the Mixed Effects Structural Equations (MESE) model which combines structural equations modeling and item response theory is introduced to attend to measurement error bias when using several latent variables as predictors in generalized linear models. The paper investigates racial and gender disparities in STEM retention i...

Journal: :Biometrics 2004
Sik-Yum Lee Xin-Yuan Song

A general two-level latent variable model is developed to provide a comprehensive framework for model comparison of various submodels. Nonlinear relationships among the latent variables in the structural equations at both levels, as well as the effects of fixed covariates in the measurement and structural equations at both levels, can be analyzed within the framework. Moreover, the methodology ...

Journal: :iranian journal of public health 0
yahya khosravi 1. dept. of occupational health engineering, faculty of medical sciences, tarbiat modares university , tehran, iran. hassan asilian-mahabadi 1. dept. of occupational health engineering, faculty of medical sciences, tarbiat modares university , tehran, iran. ebrahim hajizadeh 2. dept. of biostatistics, faculty of medical sciences, tarbiat modares university , tehran, iran. narmin hassanzadeh-rangi 3. dept. of occupational health engineering, shahid beheshti university of medical sciences , tehran, iran. amir h behzadan 4. dept. of civil, environmental, and construction engineering, university of central florida , orlando, fl, usa.

with rapid economic development and industrialization, the construction industry continues to rank among the most hazardous industries in the world. therefore, construction safety is always a significant concern for both practitioners and researchers. the objective of this study was to create a structural modeling of components that influence the safety performance in construction projects.we f...

2007
Charles Kemp Noah D. Goodman Joshua B. Tenenbaum

We previously considered a Bayesian model based on our complexity measure, but Equations 2 and 3 can also be used to define a Bayesian model based on Goodman’s measure. The left columns show predictions when this model is applied to the inductive tasks in our first experiment. In order to combine Goodman’s model with Equations 2 and 3, each T in these equations must now refer to a candidate ext...

Introduction: Due to the prevalence of psychological damage in cancer patients, some studies indicate the role of psychological structures in compromising cancer. The purpose of this study was to develop a model for the relationship between psychosocial factors and self-efficacy of pain by mediating optimism and psychological hardiness in patients with cancer in Urmia. Methods: This study was c...

2008
Naoto Kunitomo Yukitoshi Matsushita

We compare four different estimation methods for the coefficients of a linear structural equation with instrumental variables. As the classical methods we consider the limited information maximum likelihood (LIML) estimator and the two-stage least squares (TSLS) estimator, and as the semi-parametric estimation methods we consider the maximum empirical likelihood (MEL) estimator and the generali...

2001
WAYNE S. DESARBO KAMEL JEDIDI INDRAJIT SINHA

In recent years, customer value has become a major focus among strategy researchers and practitioners as an essential element of a firm’s competitive strategy. Many firms have been interested in Customer Value Analysis (CVA) which involves a structural analysis of the antecedent factors of perceived value (i.e., perceived quality and perceived price) to assess their relative importance in the p...

2012
T. W. Anderson

Consider testing the null hypothesis that a single structural equation has specified coefficients. The alternative hypothesis is that the relevant part of the reduced form matrix has proper rank, that is, that the equation is identified. The usual linear model with normal disturbances is invariant with respect to linear transformations of the endogenous and of the exogenous variables. When the ...

2011
A. Cristiano I. Malossi Simone Deparis Pablo J. Blanco

This work is focused on the development of a geometrical multiscale framework for modeling the human cardiovascular system. This approach is designed to deal with different geometrical and mathematical models at the same time, without any preliminary hypotheses on the layout of the general multiscale problem. This flexibility allows to set up a complete arterial tree model of the circulatory sy...

2009
Naoto Kunitomo

We consider the estimation of coefficients of a structural equation with many instrumental variables in a simultaneous equation system. It is mathematically equivalent to an estimating equation estimation or a reduced rank regression in the statistical linear models when the number of restrictions or the dimension increases with the sample size. As a semi-parametric method, we propose a class o...

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