Dr. Richard E. Mayer – a Professor of Psychology at the University of California in Santa Barbara – presented all the reasons in his book “Multimedia Learning”. Look at the following charts:
His research shows that animations with narration produce better retention for the audience than narrations only. That’s why when you watch a movie or documentary, you get to see pictures and movies with someone speaking over them. That’s why they never show you a blank screen with voice over.
The second group of charts show people retain more information when presented with a picture that has words associated with it than just a bunch of text (aka bullet points) on the screen. That’s why it is better to show a slide with a short sentence and a relevant picture.
In our next posting, I will show you a summary of Dr. Mayer’s findings on multi-media learning.