Semi-automated Rasch analysis with differential item functioning.
Behav Res Methods
; 55(6): 3129-3148, 2023 09.
Article
em En
| MEDLINE
| ID: mdl-36070131
ABSTRACT
Rasch analysis is a procedure to develop and validate instruments that aim to measure a person's traits. However, manual Rasch analysis is a complex and time-consuming task, even more so when the possibility of differential item functioning (DIF) is taken into consideration. Furthermore, manual Rasch analysis by construction relies on a modeler's subjective choices. As an alternative approach, we introduce a semi-automated procedure that is based on the optimization of a new criterion, called in-plus-out-of-questionnaire log likelihood with differential item functioning (IPOQ-LL-DIF), which extends our previous criterion. We illustrate our procedure on artificially generated data as well as on several real-world datasets containing potential DIF items. On these real-world datasets, our procedure found instruments with similar clinimetric properties as those suggested by experts through manual analyses.
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Base de dados:
MEDLINE
Assunto principal:
Psicometria
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article