Harvard researchers: frequent tests increase retention in online learning — from elearningindustry.com by Andrew Winner
Excerpt:
A pair of researchers at Harvard University think they’ve got part of the answer. In a study run by Daniel Schacter, the William R. Kenan Jr. Professor of Psychology, and Karl Szpunar, a postdoctoral fellow in psychology, they found that interspersing short quizzes into online learning course can dramatically increase student retention of material.