방법 비교

	지식 추적	Rasch 모형
분야	교육 분석학	심리측정학
계열	Machine learning	Latent structure
기원 연도	1994	1960
창시자	Albert Corbett & John Anderson	Georg Rasch
유형	Probabilistic student modeling	Item Response Theory / Latent trait model
원전	Corbett, A. T., & Anderson, J. R. (1994). Knowledge tracing: Modeling the acquisition of procedural knowledge. User Modeling and User-Adapted Interaction, 4(4), 253–278.	Rasch, G. (1960). Probabilistic Models for Some Intelligence and Attainment Tests. Danish Institute for Educational Research, Copenhagen.
별칭	BKT, Bayesian Knowledge Tracing, Deep Knowledge Tracing, Bilgi İzleme	1PL IRT, one-parameter logistic model, Rasch Modeli — 1PL IRT, 1PL model
관련	3	6
요약	Knowledge Tracing (KT) is a student-modeling technique that estimates, at each moment in time, the probability that a learner has mastered a target knowledge component. Introduced by Corbett and Anderson in 1994, the classical Bayesian Knowledge Tracing (BKT) model treats skill acquisition as a two-state Hidden Markov Model driven by four interpretable parameters: prior knowledge, learning rate, slip, and guess. Deep variants (DKT, DKVMN, AKT) later replaced HMMs with recurrent and transformer architectures.	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.