Bayesian methods in psychological research: the case of IRT

Bayesian methods have become increasingly popular in social sciences due to its flexibility in accommodating numerous models from different fields. The domain of item response theory is a good example of fruitful research, incorporating in the lasts years new developments and models, which are being...

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Bibliographic Details
Author: González Burgos, Jorge
Format: article
Status:Versión aceptada para publicación
Publication Date:2010
Country:Colombia
Institution:Universidad de San Buenaventura
Repository:Repositorio USB
Language:Spanish
OAI Identifier:oai:null:10819/6544
Online Access:http://hdl.handle.net/10819/6544
Access Level:Open access
Keyword:Item response theory models
Bayesian Inference
WinBUGS
Teoría de respuesta al ítem
Inferencia Bayesiana
Estadística
Análisis estadístico
Investigación cuantitativa
Psicología - investigaciones
Description
Summary:Bayesian methods have become increasingly popular in social sciences due to its flexibility in accommodating numerous models from different fields. The domain of item response theory is a good example of fruitful research, incorporating in the lasts years new developments and models, which are being estimated using the Bayesian approach. This is partly because of the availability of free software such as WinBUGS and R, which has permitted researchers to explore new possibilities. In this paper we outline the Bayesian inference for some IRT models. It is briefly explained how the Bayesian method works. The implementation of Bayesian estimation in conventional software is discussed and sets of codes for running the analyses are provided. All the applications are exemplified using simulated and real data sets