Generalized latent trait models |
| |
Authors: | Irini Moustaki Martin Knott |
| |
Institution: | (1) Department of Statistics, London School of Economics, Houghton Street, WC2A 2AE London, UK |
| |
Abstract: | In this paper we discuss a general model framework within which manifest variables with different distributions in the exponential family can be analyzed with a latent trait model. A unified maximum likelihood method for estimating the parameters of the generalized latent trait model will be presented. We discuss in addition the scoring of individuals on the latent dimensions. The general framework presented allows, not only the analysis of manifest variables all of one type but also the simultaneous analysis of a collection of variables with different distributions. The approach used analyzes the data as they are by making assumptions about the distribution of the manifest variables directly. |
| |
Keywords: | generalized linear models latent trait model EM algorithm scoring methods |
本文献已被 SpringerLink 等数据库收录! |