G. L. Fahey. “The Extent of Classroom Questioning Activity of High-School Pupils and the Relation of Such Activity to Other Factors of Pedagogical Significance”. Journal of Educational Psychology 33, № 2 (1942), 128–137. http://psycnet.apa.org/doiLanding?doi=10.1037%2Fh0057107. См. также: George L. Fahey. “The Questioning Activity of Children”. Journal of Genetic Psychology, 60 (1942), 337–357.
