Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Cybernetic model of adaptive electronic textbook using the G. Rasch methodology I.V. IVANOV M.A. KOSONOGOVA Operation of an e-learning system is discussed with the general principles of cybernetics. Adaptation trajectory of training is offered based on behavioral factors, the level of training and personal and psychological characteristics of students. The principles of the natural growth of educational achievements through individual development zone are taken into account. The problem of adapting trajectory of training in an environment of changing qualities of students is defined based on the principles of control theory. An operational description of the latent quality «level of training» has been developed. An approach to scoring of current level of training at each step of learning using Georg Rasch’s model for polytomous data is offered. The advantages of this measuring apparatus are outlined for adaptive e-learning. Developed cybernetic description adaptive electronic textbook allowing the problem of synthesis of optimal learning to be solved, relying on the methods and theoretical position of cybernetics. Keywords: e-learning system, cybernetic description, adaptation, personal trajectory of training, development zone, level of training, Rasch model. Contacts: E-mail: ivan_i_v@intbel.ru Pp. 73-78.