The Item Response Theory Mixture Models
The Item Response Theory mixture models and how these can be used to identify unobserved sub-groups of examinees, known as latent classes, are presented. The usefulness of the two-parameter mixture model parameters is exemplified by detecting the presence of items in a depression scale that measure...
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2015 |
| País: | Costa Rica |
| Recursos: | Universidad de Costa Rica |
| Repositório: | Portal de Revistas UCR |
| Idioma: | espanhol |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/18728 |
| Acesso em linha: | https://revistas.ucr.ac.cr/index.php/actualidades/article/view/18728 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Psicometría Teoría de respuesta al ítem modelos de mezcla clases latentes Escala de depresión geriátrica. Psychometrics Item Response Theory mixture models latent classes Geriatric Depression Scale. |
| Resumo: | The Item Response Theory mixture models and how these can be used to identify unobserved sub-groups of examinees, known as latent classes, are presented. The usefulness of the two-parameter mixture model parameters is exemplified by detecting the presence of items in a depression scale that measure the examinees differently in comparison with the rest of items. Finally, some general recommendations regarding the complementarity that should exist between the substantive theory underlying the development of a scale and the use of these models are given. |
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