Investigating Heterogeneity in Response Strategies: A Mixture Multidimensional IRTree Approach.

ABSTRACT: To improve the validity of self-report measures, researchers should control for response style (RS) effects, which can be achieved with IRTree models. A traditional IRTree model considers a response as a combination of distinct decision-making processes, where the substantive trait affects the decision on response direction, while decisions about choosing the middle category or extreme categories are largely determined by midpoint RS (MRS) and extreme RS (ERS). One limitation of traditional IRTree models is the assumption that all respondents utilize the same set of RS in their response strategies, whereas it can be assumed that the nature and the strength of RS effects can differ between individuals. To address this limitation, we propose a mixture multidimensional IRTree (MM-IRTree) mode

SUBMITTER: Alagoz OEC 

PROVIDER: S-EPMC11418595 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature