A preference-based item response theory model to measure health: concept and mathematics of the multi-attribute preference response model.

ABSTRACT:

Background

A new patient-reported health measurement model has been developed to quantify descriptions of health states. Known as the multi-attribute preference response (MAPR) model, it is based on item response theory. The response task in the MAPR is for a patient to judge whether hypothetical health-state descriptions are better or worse than his/her own health status.

Methods

In its most simple form MAPR is a Rasch model where for each respondent on the same unidimensional health scale values are estimated of their own health status and values of the hypothetical comparator health states. These values reflect the quality or severity of the health states. Alternatively, the respondents are offered health-state descriptions that are based on a classification system (e.g.,

SUBMITTER: Groothuis-Oudshoorn CGM 

PROVIDER: S-EPMC6013962 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature