Сравнение на методи

	Ординален модел на Раш (модели с рейтингова скала и частичен кредит)	Модел на Раш
Област	Психометрия	Психометрия
Семейство	Latent structure	Latent structure
Година на възникване	1978–1982	1960
Създател	David Andrich (RSM, 1978); Geoff Masters (PCM, 1982)	Georg Rasch
Тип	Item response model for ordered categories	Item Response Theory / Latent trait model
Основополагащ източник	Andrich, D. (1978). A rating formulation for ordered response categories. Psychometrika, 43(4), 561–573.	Rasch, G. (1960). Probabilistic Models for Some Intelligence and Attainment Tests. Danish Institute for Educational Research, Copenhagen.
Други названия	Rating Scale Model, Partial Credit Model, RSM, PCM	1PL IRT, one-parameter logistic model, Rasch Modeli — 1PL IRT, 1PL model
Свързани	6	6
Резюме	The ordinal Rasch model extends the dichotomous Rasch framework to items with ordered response categories such as Likert-type scales. It places both persons and items on a shared interval-level metric, enabling principled measurement from ordinal data while checking whether items function consistently across all response thresholds.	The Rasch model, introduced by Georg Rasch in 1960, is the simplest member of the Item Response Theory (IRT) family. It assigns a single difficulty parameter to each test item and places both item difficulties and person abilities on the same logit scale, enabling direct, sample-independent comparison of items and persons.