Another popular training myth has to do with Dale's "Cone of Experience" which was not based on any research and is often combined with retention rates that are completely unsubstantiated. You've likely heard the retention rates idea as "we remember 10% of what we read" and so on. False citations and inclusion in textbooks doesn't help.
One more. A picture is worth a thousand words. Not that pictures aren't valuable when used correctly but such a statement of the quantitative power of pictures is completely unsubstantiated. You ought not to replace great literature with a few nice pictures and you ought not to take down beautiful pictures and write about them instead.
Great article! Thank you for sharing and for helping to educate any and all about how we ought to go about helping educate others.