Title	Accuracy of Data-Model Fit Using Growing Levels of Invariance Models
Author	Deyab A. Almaleki
Citation	Vol. 21  No. 12  pp. 157-164
Keywords	Model- accuracy; Factorial-invariance; Level of measurement invariance; Factorial invariance

Title	The Psychometric Properties of Effectiveness Scale in Distance-Digital
Author	Deyab A. Almaleki
Citation	Vol. 21  No. 12  pp. 149-156
Keywords	Digital Scale; Effectiveness; Factor Analysis; Factorial Invariance

Title	Problems of Distance Learning in Specialists Training in Modern Terms of The Informative Society During COVID-19
Author	Oleksandr Kuchai, Serhii Yakovenko, Tetiana Zorochkina, Tetiana Оkolnycha, Iryna Demchenko, Tetiana Kucha?
Citation	Vol. 21  No. 12  pp. 143-148
Keywords	information technologies, distance learning, education, teachers training, informative culture of teacher.

Title	Virtual Go to School (VG2S)： University Support Course System with Physical Time and Space Restrictions in a Distance Learning Environment
Author	Koji Fujita
Citation	Vol. 21  No. 12  pp. 137-142
Keywords	Distance learning, e-learning, Educational Engineering, User Experience, Interface Design