USING STRUCTURAL EQUATION AND ITEM RESPONSE MODELS TO ASSESS RELATIONSHIP BETWEEN LATENT TRAITS
Journal Title: Journal of Applied Quantitative Methods - Year 2011, Vol 6, Issue 4
Abstract
We deepen the two main approaches to the problem of measurement error in social sciences, the Structural Equation Models (SEM) and the Item Response Theory Models (IRM), comparing two different estimation procedures. The One-step procedure (related to SEM) requires that researcher specifies a complete model of both measurement aspects (single link between the latent variable and its indicators) and structural aspects (links between different latent variables), with the model parameters estimated simultaneously. In the Two-step procedure (related to IRM), we first estimate the measures (one for each construct), then we will assess, through a regression model, the relationships between these measures and the latent variables that they represent. Our aim is to define a Two-step method that, using information obtained in the first step about the measurement error, presents low levels of bias and loss of efficiency, as close as possible to that of One-step method.
Authors and Affiliations
Anna SIMONETTO
Keywords
Related Articles
- EP ID EP157140
- DOI -
- Views 119
- Downloads 0
Finding GPS Coordinates on a Map Using PDA
The purpose is defining algorithms for the elaboration of GPS coordinates using the PDA. The C++ and C# programming languages have been used for this. A software was elaborated which: runs on PDAs that have Windows Mobil...
The Audit of The Information Technologies & Communication Projects Developed by Students
The modern world is undergoing a fundamental transformation characterized by a lot of challenges, dynamism, globalization, and the increasing influence of Information and Communication Technologies (ICTs). These new tech...
Improving the Performance of Sparse LU Matrix Factorization Using a Supernodal Algorithm
In this paper we investigate a method to improve the performance of sparse LU matrix factorization used to solve unsymmetric linear systems, which appear in many mathematical models. We introduced and used the concept of...
A TWO-LEVEL STRUCTURAL EQUATION MODEL FOR EVALUATING THE EXTERNAL EFFECTIVENESS OF PHD
In recent years the number of PhDs in Italy has significantly grown and purposes of PhD courses have expanded from the traditional ones. The analysis of the contribution of PhD title for job placement and employment cond...
BILEVEL PROGRAMMING PROBLEM WITH FUZZY PARAMETERS: A FUZZY GOAL PROGRAMING APPROACH
This paper describes how fuzzy goal programming can be efficiently used to solve bilevel programming problems with fuzzy parameters. In the model formulation of the problem, the tolerance membership functions for the fuz...