Challenging learning styles and learning retention beliefs
I am not sure what this says about me, but I was reminded of the interesting work and commentary of blogger Will Thalheimer by blogger Jack Vinson, who teaches in the same program I do at Northwestern University. Both fellows are worth reading because of their keen perspective and sharp eye for credibility and logic (or lack thereof) in learning and knowledge management.
Jack cited a posting by Will from May, 2006 which completely debunks the oft-used "wisdom" that people retain 10% of what they read, 20% of what they see, 30% of what they hear, etc. You can read the full debunking, but the gist is that the data are fabricated and have just simply been repeated without questioning the cited sources (Will did) or taking a critical eye to the logic (how did someone differentiate between "reading" and "seeing?").
More recently, Will has renewed his challenge concerning the application of learning styles/preferences to instructional design:
"Can an e-learning program that utilizes learning-style information outperform an e-learning program that doesn't utilize such information by 10% or more on a realistic test of learning, even it is allowed to cost up to twice as much to build?"
Will isn't challenging the idea that there are such things as learning styles -- just that their application to real-world instructional design situations isn't a valuable exercise.
The larger point -- and the reason I read both Will and Jack -- is that we need to be much better consumers of "research" that informs our expertise.

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