Noun
Rasch model (plural Rasch models)
A psychometric model for analysis of categorical data, such as answers to a questionnaire, as a function of the trade-off between (a) the respondent's abilities, attitudes or personality traits and (b) the item difficulty.
An approach which seems mathematically to be similar to IRT but also quite distinctive, in terms of its origins and features, is represented by the Rasch model for measurement. Source: Internet
On the other hand, when measurement models such as the Rasch model are employed, numbers are not assigned based on a rule. Source: Internet
The development of the Rasch model, and the broader class of models to which it belongs, was explicitly founded on requirements of measurement in the physical sciences. Source: Internet