In a client project I was asked to tell them how learning time can be calculated. In this project people have to work through online texts and go through a final exam (online quiz). All participants are adults and have an academic degree. In their daily work they use text documents and have experience in research based on texts.
My own rule of thumb will be: reading time in this target group on paper plus 25%, because reading on screens needs more time.
I've checked several books about elaerning and check lists but nowhere any information how to calculate learning time.
What is your experience, what are your rules of thumb?
P.S.: Why is this question relevant? My client has to register the elearning offer by an self regulatory professional organization. They are asking for learning time. This is one criteria for credit pionts given by them.