eLearning & Training: How Long is Too Long?
The Logical Blog by IconLogic
APRIL 23, 2014
According to Joan Middendorf and Alan Kalish , Indiana University, "Adult learners can keep tuned in to a lecture for no more than 15 to 20 minutes at a time." The student sat motionless, with eyes shut for about a minute and a half, pen still poised. Then he just nodded off.
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