Even Credible Sources are Sometimes Not Credible

Will Thalheimer provides yet another valuable resource. His 2006 blog post on the learning styles myth that “People believe 10% of what they read, 20% of what they hear…” etc., illustrates that very credible sources have erroneously connected these false statistics to Dale’s Cone of Experience. A warning to us all to track down our sources! See the post at:


And note that one of the comments cites a 2002 AECTpresentation by Tony Betrus and Al Januszewski that provides more detail on what Edgar Dale did and did not say about his model, available at: http://www2.potsdam.edu/betrusak/AECT2002/dalescone_files/dalescone.html.ppt


One comment on “Even Credible Sources are Sometimes Not Credible

  1. Tracey Birdwell says:

    I can believe the fakery. I’ve seen those cones pop up at flipped classroom talks. There’s a tiny moment where they say….see, the cone (ie the research)…we need to be at the bottom in the way we model teaching…and then move on. It would seem, for example, that what one could retain from reading would be quite variable from person to person and context to context. It was always hard to buy into that cone, it seemed too simple.

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