পদ্ধতির তুলনা করুন

	অর্ডিনাল আইটেম রেসপন্স থিওরি	গ্রেডেড রেসপন্স মডেল (GRM)
ক্ষেত্র	মনোমিতি	মনোমিতি
পরিবার	Latent structure	Latent structure
উদ্ভবের বছর	1969	1969
প্রবর্তক	Fumiko Samejima (Graded Response Model, 1969); Gerhard Fischer & Georg Rasch lineage for partial credit	Fumiko Samejima
ধরন	Probabilistic latent trait model for ordered polytomous responses	Item response theory / polytomous IRT model
মৌলিক উৎস	Samejima, F. (1969). Estimation of latent ability using a response pattern of graded scores. Psychometrika Monograph Supplement, 34(4, Pt. 2), 1–97.	Samejima, F. (1969). Estimation of Latent Ability Using a Response Pattern of Graded Scores. Psychometrika Monograph Supplement, No. 17.
অপর নাম	polytomous IRT, ordinal IRT models, graded response models, ordinal latent trait models	Samejima's GRM, Derecelendirilmiş Tepki Modeli (GRM), graded IRT model
সম্পর্কিত	6	7
সারসংক্ষেপ	Ordinal item response theory (ordinal IRT) comprises a family of probabilistic models — most notably the Graded Response Model and the Partial Credit Model — that relate a respondent's standing on a latent trait to the probability of choosing each ordered response category on a polytomous item. It extends classical IRT beyond dichotomous items to the Likert-type and rating-scale items that dominate psychometric measurement.	The Graded Response Model is an item response theory model developed by Fumiko Samejima in 1969 for ordered polytomous items such as Likert-type scales. It estimates both the discriminating power of each item and a set of threshold parameters marking the boundaries between adjacent response categories, while simultaneously placing persons on a continuous latent trait scale.