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People do NOT remember 10% of what they read, 20% of what they see, 30% of what they hear, etc. That information, and similar pronouncements are fraudulent. Moreover, general statements on the effectiveness of learning methods are not credible---learning results depend on too many variables to enable such precision. Unfortunately, this bogus information has been floating around our field for decades, crafted by many different authors and presented in many different configurations, including bastardizations of Dale's Cone.
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Where the Numbers Came From
The bogus percentages were first published by an employee of Mobil Oil Company in 1967, writing in the magazine Film and Audio-Visual Communications. D. G. Treichler didn’t cite any research, but our field has unfortunately accepted his/her percentages ever since. NTL Institute still claims that they did the research that derived the numbers. See my response to NTL.
Michael Molenda, a professor at Indiana University, is currently working to track down the origination of the bogus numbers. His efforts have uncovered some evidence that the numbers may have been developed as early as the 1940'
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08 Feb 16
Grant Olds"a review of that research here"
learning research education pedagogy teaching myth instructionaldesign instruction
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05 Nov 15
Mike taylor"People remember 10% of..." Blah blah nonsense. Thanks @WillWorkLearn for this timeless blog post. https://t.co/Nq8NIoH0Ni
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28 Oct 15
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04 Oct 15
Karen Bosch@sylviaduckworth @DrTerriOU @ICTEvangelist @karlyb @langwitches helpful investigation into faux statistics & E.Dale: http://t.co/I7fH35yMAo
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11 Sep 15
Kate Herzog"This article was originally published on the Work-Learning Research website (www.work-learning.com) in 2002. It may have had some minor changes since then. It was moved to this blog in 2006."
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25 Feb 15
George StationMyth-busting the assumptions about reading, hearing, seeing...
learning memory instructional design technology and society psychology communication
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24 Feb 15
Clint LalondePeople do NOT remember 10% of what they read, 20% of what they see, 30% of what they hear, etc. That information, and similar pronouncements are fraudulent. Moreover, general statements on the effectiveness of learning methods are not credible---learning results depend on too many variables to enable such precision. Unfortunately, this bogus information has been floating around our field for decades, crafted by many different authors and presented in many different configurations, including bastardizations of Dale's Cone.
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03 Nov 14
Jac CalderWhat we said. RT @rgaudreau: .@stevebissonnett I've been had! I always believed this to be factual. http://t.co/UkEj33xy8V @jaccalder
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Joseph Perkins.@suttontrust report criticised learning pyramids.This blog explains exactly why they're false http://t.co/2OAxms4szE http://t.co/IegpSrG3eq
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03 Oct 14
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31 Jul 14
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02 Jun 14
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30 May 14
Brian Sharland@urban_teacher @Dan_Aldred @SteveJodwin Anyone still peddling these stats needs to check their references http://t.co/NKhA4bIXs5
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29 May 14
Ricardo TeixeiraPublication Note This article was originally published on the Work-Learning Research website (www.work-learning.com) in 2002. It may have had some minor changes since then. It was moved to this blog in 2006. Introduction People do NOT remember 10% of what...
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Debbie BeaudryPublication Note This article was originally published on the Work-Learning Research website (www.work-learning.com) in 2002. It may have had some minor changes since then. It was moved to this blog in 2006. Introduction People do NOT remember 10% of what...
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Lisa Dempstermisuse and misrepresentation, the spread of false data
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People remember 10%, 20%...Oh Really?
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10 May 13
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we may need to look behind the curtain to verify their claims.
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We began our research efforts several years ago when we noticed that the field jumps from one fad to another while at the same time holding religiously to ideas that would be better cast aside.
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03 Mar 13
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23 Jan 13
Héctor GonzàlvezSobre la veracitat dels percentatges d'aprofitament de l'aprenentatge segons siga llegint, escoltant, dient o fent.
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07 Nov 12
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24 Oct 12
Jonathan Powell"People do NOT remember 10% of what they read, 20% of what they see, 30% of what they hear, etc. That information, and similar pronouncements are fraudulent. "
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02 Sep 12
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Has SloneThe cone of learning is a myth with no research to support it!
learning research education pedagogy teaching myth instructionaldesign instruction
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27 Apr 12
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People do NOT remember 10% of what they read, 20% of what they see, 30% of what they hear
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Moreover, general statements on the effectiveness of learning methods are not credible---learning results depend on too many variables to enable such precision. Unfortunately, this bogus information has been floating around our field for decades, crafted by many different authors and presented in many different configurations, including bastardizations of Dale's Cone. The rest of this article offers more detail.
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etc. That information, and similar pronouncements are fraudulent
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20 Mar 12
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16 Mar 12
michel moriceau"People do NOT remember 10% of what they read, 20% of what they see, 30% of what they hear, etc. That information, and similar pronouncements are fraudulent. Moreover, general statements on the effectiveness of learning methods are not credible---learning results depend on too many variables to enable such precision. Unfortunately, this bogus information has been floating around our field for decades, crafted by many different authors and presented in many different configurations, including bastardizations of Dale's Cone"
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14 Mar 12
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26 Feb 12
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Everyone who uses a citation to make a point (or draw a conclusion) ought to check the citation. That, of course, includes all of us who are consumers of this information.
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21 Feb 12
Heather Day"People do NOT remember 10% of what they read, 20% of what they see, 30% of what they hear, etc. That information, and similar pronouncements are fraudulent. "
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16 Feb 12
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If we have a person learn foreign-language vocabulary by listening to an audiotape and vocalizing their responses, it doesn't make sense to test them by having them write down their answers.
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15 Feb 12
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14 Feb 12
Clare AtkinsAn old article but still one worth remembering or pointing out to newcomers :)
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10 Feb 12
CTS LearningPeople do NOT remember 10% of what they read, 20% of what they see, 30% of what they hear, etc. That information, and similar pronouncements are fraudulent. Moreover, general statements on the effectiveness of learning methods are not credible---learning results depend on too many variables to enable such precision. Unfortunately, this bogus information has been floating around our field for decades, crafted by many different authors and presented in many different configurations, including bastardizations of Dale's Cone. The rest of this article offers more detail.
cited:
Dale, E. (1946, 1954, 1969). Audio-visual methods in teaching. New York: Dryden.
http://books.google.com/books?id=wk47AAAAIAAJEdgar Dale Cone of Experience healthy skepticism learning design learning styles people remember charts blog posts
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19 Dec 11
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If we look at the numbers a little more closely, they are highly unconvincing. How did someone compare "reading" and "seeing?" Don't you have to "see" to "read?" What does "collaboration" mean anyway? Were two people talking about the information they were learning? If so, weren't they "hearing" what the other person had to say? What does "doing" mean? How much were they "doing" it? Were they "doing" it correctly, or did they get feedback? If they were getting feedback, how do we know the learning didn't come from the feedback---not the "doing?" Do we really believe that people learn more "hearing" a lecture, than "reading" the same material? Don't people who "read" have an advantage in being able to pace themselves and revisit material they don't understand? And how did the research produce numbers that are all factors of ten? Doesn't this suggest some sort of review of the literature? If so, shouldn't we know how the research review was conducted? Shouldn't we get a clear and traceable citation for such a review?
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20 Nov 11
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Patti Porto"People do NOT remember 10% of what they read, 20% of what they see, 30% of what they hear, etc. That information, and similar pronouncements are fraudulent. Moreover, general statements on the effectiveness of learning methods are not credible---learning results depend on too many variables to enable such precision. Unfortunately, this bogus information has been floating around our field for decades, crafted by many different authors and presented in many different configurations, including bastardizations of Dale's Cone."
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04 Nov 11
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14 Sep 11
Mauro PaganoFamoso grafico com percentual do que se é capaz de lembrar é infundado.
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05 May 11
Lyudmila KalachovaХорошая статья по анализу исследований в сфере запоминания визуальной информации: анализ разных диаграмм, перевести, написать статью
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03 Apr 11
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During World War Two Phillips taught Visual Aids at the U. S. Army's Ordnance School at the Aberdeen (Maryland) Proving Grounds, where the numbers have also appeared and where they may have been developed.
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Dale's "Cone of Experience," developed in 1946 by Edgar Dale
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an intuitive model of the concreteness of various audio-visual media
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Dale included no numbers in his model and there was no research used to generate it.
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Dale's Cone of Experience (Dale, 1969, p. 107)
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the diagram above is citing a book that does not include the diagram and does not include the percentages indicated in the diagram
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If we have a person learn foreign-language vocabulary by listening to an audiotape and vocalizing their responses, it doesn't make sense to test them by having them write down their answers.
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It's really impossible to compare two things on different indices.
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It tells us that we may not be able to trust the information that floats around our industry.
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The fact that our field is so easily swayed by the mildest whiffs of evidence suggests that we don't have sufficient mechanisms in place to improve what we do.
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we must be actively skeptical of the information we receive.
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investigate the evidence
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check the facts
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evaluate the research
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27 Feb 11
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20 Feb 11
Yukon syldebunking the myth of how people learn - numbers are fictitious - this article details where it might have come from and how Edgar's Cone of Experience (so often cited) was misused - he never put the percentage on his chart
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Public Stiky Notes
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