Bilokon , J. “VALIDITY OF THE TEST AS A GUARANTEE OF THE EFFICIENCY OF ITS APPLICATION FOR EVALUATING STUDENTS’ ACHIEVEMENTS BY DISTANCE EDUCATION”. Distance Education in Ukraine: Innovative, Normative-Legal, Pedagogical Aspects, vol. 1, no. 2, Feb. 2023, pp. 128-32, doi:10.18372/2786-5495.1.17313.