biology leadership conference community webinar october 26, 2011
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How What We Know About Human Memory Can Help All Students Learn Robert A. Bjork University of California, Los Angeles. Biology Leadership Conference Community Webinar October 26, 2011. The human memory system is characterized by …. - PowerPoint PPT PresentationTRANSCRIPT
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How What We Know About Human Memory Can Help All Students Learn
Robert A. BjorkUniversity of California, Los Angeles
Biology Leadership Conference Community WebinarOctober 26, 2011
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The human memory system is characterized by …
A remarkable symbiosis of forgetting, learning, and remembering Forgetting, rather than undoing learning, enables
learning and focuses remembering; Remembering creates learning and produces
forgetting; Learning begets remembering, contributes to
forgetting, and enables new learning.
Bjork (2011)
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But human memory also characterized by equally remarkable misunderstandings of the system …
By its users We carry around a flawed mental model of how we learn
and remember, or fail to learn and remember Our judgments of whether we have learned and will remember
later are unreliable; We are subject to illusions of comprehension; We manage our own learning in far-from-optimal ways And our misunderstandings are coupled with counterproductive
societal attitudes and assumptions about how people learn
We appear not, surprisingly, to be informed by the trials and errors of everyday living and learning
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A fundamental problem we confront:
Conditions of instruction that make performance improve rapidly often fail to support long-term retention and transfer,
…whereas
Conditions of instruction that appear to create difficulties for the learner, slowing the rate of apparent learning, often optimize long-term retention and transfer
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Examples of manipulations that introduce “desirable difficulties” (Bjork, 1994) for the learner
Varying the conditions of learning
Distributing or spacing study or practice sessions
Using tests (rather than presentations) as learning events
Providing “contextual interference” during learning (e.g., interleaving rather than blocking practice)
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The word desirable is important …
Many difficulties are undesirable during learning, after learning, and forever after
Desirable difficulties are desirable because responding to them (successfully) engages processes that support learning, comprehension, and remembering
They become undesirable difficulties if the learner is not equipped to respond to them successfully.
Generation effects as an example.
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Variation example: Even varying the environmental context of learning matters(Smith, Glenberg, & Bjork, 1978)
Study inRoom A
Study inRoom A
Study inRoom B
TestedRoom C
TestedRoom C
Study inRoom A
Tested inRoom A
Tested inRoom B
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Distributing or spacing study or practice sessions: the spacing effect
>
P2
P1 P2
P1
Test
Test
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Baddeley & Longman (1979)
Training Schedule
1 x 1 hr 2 x 1 hr 1 x 2 hr 2 x 2 hr
Distributing/Spacing of Practice
Hours to Learn Keyboard
34.9 42.6 43.2 49.7
Mean Satisfaction Rating 1 (Very Satisfactory) to 5 (Very Unsatisfactory)
2.40 1.86 2.00 1.73
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Tests versus presentations as learning events
Testing as pedagogy versus testing as assessment Retrieving information or procedures is a learning event
The information/procedures recalled become more recallable in the future than they would have been otherwise;
It is substantially more powerful event than is being presented the information (inflatable life vest example)
Tests provide far better feedback as to what has or has not been learned/understood (vs. presentations)
Tests potentiate the effectiveness of subsequent study
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Example of the power of tests as learning events
Roediger and Karpicke (2006) To-be-learned text passage on the sun or on sea
otters (about 30 idea units per passage) Three conditions
SSSS: four consecutive 5-min study periods SSST: three study period plus a test of recall for the
passage STTT: one study period plus four consecutive tests of recall
for the passage
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Roediger & Karpicke (2006)
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Roediger & Karpicke (2006)
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Roediger & Karpicke (2006)
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Providing “contextual interference” during learning Interleaving rather than blocking practice
Motor skills, such as hitting baseballs, serving in badminton (e.g., Simon and Bjork, 2001)
Learning formulas: Rohrer and Taylor (2007) Children’s penmanship: Ste-Marie, Clark, Findlay, &
Latimer (2004) Inducing categories and concepts (Kornell & Bjork,
2008)
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Simon & Bjork (2001)
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Err
or s
core
High
Low
Practice 24hrs
Random
Blocked
Actual
Simon & Bjork (2001)
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Err
or s
core
High
Low
Practice 24hrs Practice 24hrs
Random
Blocked
Actual Predicted Retention
Random
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Error
High
Low
Practice 24hrs Practice 24hrs
Random
Blocked
Actual Predicted Retention
Blocked
Random
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Wedge V= Spheroid V=
Spherical Cone V= Half Cone V=
Rohrer & Taylor (2007)
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Mixed Blocked Mixed Blocked
Practice Final Test
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Blocked versus interleaved practiceSte-Marie, Clark, Findlay, & Latimer (2004)
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Optimizing induction
• The ability to generalize concepts and categories through exposure to multiple exemplars.
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Gentoo
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Where’s the Gentoo?
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Hypothesis (Kornell & Bjork, 2008): Induction is one situation where massing is superior to spacing
• Blocking/massing allows the learner to notice characteristics that unify a category
• Interleaving/spacing makes doing so difficultGentoo Gentoo Gentoo Gentoo
Gentoo Lachesis Reinhard Gentoo
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Lewis
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Lewis
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Lewis
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Lewis
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Lewis
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Lewis
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Lewis LewisLewisLewis Lewis Lewis
Pessani StratulatSchlorffWexler Juras Mylrea
Pessani StratulatSchlorff WexlerJuras Mylrea
Hawkins HawkinsHawkinsHawkins Hawkins Hawkins
M S S M M S S M M S S M
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FeedbackTest
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Results
Actual Responses
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Differentiation hypothesis
• Original hypothesis: Blocking/massing highlights similarities
• New hypothesis: Interleaving/spacing highlights differences
LewisLewis Schlorff Hawkins
LewisLewis Lewis Lewis
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Desirable-difficulties findings: Implications for the design of instruction?
Variation?
Interleaving?
Spacing?
Using tests/generation as learning events?
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Desirable-difficulties findings: Implications for the evaluation of instruction?
Students’ evaluation of teaching?
Trainees completing “happy” or “smile” sheets in industry?
Students expectations as to how courses should be taught?
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Finally, what do college students know and not know about how to study?
Survey of 472 introductory-psychology students at UCLA
The Promise and Perils of Self-regulated Study (Kornell & Bjork, 2007)
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How do you decide what to study next?
59% Whatever's due soonest/overdue
4% Whatever I haven't studied for the longest time
4% Whatever I find interesting
22% Whatever I feel I'm doing the worst in
11% I plan my study schedule ahead of time, and I study whatever I've scheduled
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If you quiz yourself while you study (either using a quiz at the end of a chapter, or a practice quiz, or flashcards, or something else), why do you do so?
18% I learn more that way than I would through rereading
68% To figure out how well I have learned the information I’m studying
4% I find quizzing more enjoyable than rereading
9% I usually do not quiz myself
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Do you usually return to course material to review it after a course has ended?
14% Yes
86% No
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When you study, do you typically read a textbook/article/other source material more than once?
16% Yes, I re-read whole chapters/articles
60% Yes, I re-read sections that I underlined or highlighted or marked
23% Not usually
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Would you say that you study the way you do because a teacher (or teachers) taught you to study that way?
20% Yes
80% No
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Enhancing education
If students do not tend to engage in the learning activities that produce durable and flexible learning,
the fault is primarily ours; who among us, during our student days, would have
answered those survey questions differently? We need to structure courses, curricula, requirements,
and activities to engage the processes that enhance learning, comprehension, and knowledge integration
Doing so requires, among other things, adopting the student’s perspective
Newton (1990) as a parable of teaching
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Piaget (1962)
“Every beginning instructor discovers sooner or later that his first lectures were incomprehensible because he was talking to himself, so to say, mindful only of his point of view. He realizes only gradually and with difficulty that it is not easy to place one’s self in the shoes of students who do not yet know about the subject matter of the course.”
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Attitudes, assumptions, and misconceptions that impede effective learning
Misunderstanding the meaning and role of errors Errors, rather than being viewed as an essential component of
effective training, are assumed to reflect inadequacies of the instructor, the student, or both
Over-attributing differences in performance to innate differences in ability Aptitude is over-appreciated; The power of training, practice, and experience is under-
appreciated Assuming that efficient learning is easy learning
The styles-of-learning idea
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Parents Of Nasal Learners Demand Odor-Based CurriculumMarch 15, 2000 | Issue 36•09
COLUMBUS, OH–Backed by olfactory-education experts, parents of nasal learners are demanding that U.S. public schools provide odor-based curricula for their academically struggling children.
A nasal learner struggles with an odorless textbook.
… "My child is not stupid," Delia Weber, president of Parents Of Nasal Learners, said. "There simply is no way for him to thrive in a school that only caters to traditional students who absorb educational concepts by hearing, reading, seeing, discussing, drawing, building, or acting out."
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The bottom line …
Individual differences do matter, but Optimizing learning and teaching rests on
understanding what we all share: A unique functional architecture as learners and A remarkable capacity to learn.
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The end
Thanks to the James S. McDonnell Foundation
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References
Baddeley, A.D., & Longman, D.J.A. (1978). The influence of length and frequency of training session on the rate of learning to type. Ergonomics, 21, 627-635.
Bjork, R.A. (1994). Memory and metamemory considerations in the training of human beings. In J. Metcalfe and A. Shimamura (Eds.), Metacognition: Knowing about knowing. (pp.185-205). Cambridge, MA: MIT Press.
Bjork, R. A. (2011). On the symbiosis of learning, remembering, and forgetting. In A. S. Benjamin (Ed.), Successful remembering and successful forgetting: A Festschrift in honor of Robert A. Bjork (pp. 1-22). London, UK: Psychology Press.
Bjork, R. A., & Bjork, E. L. (1992). A new theory of disuse and an old theory of stimulus fluctuation. In A. Healy, S. Kosslyn, & R. Shiffrin (Eds.), From learning processes to cognitive processes: Essays in honor of William K. Estes (Vol. 2, pp. 35-67). Hillsdale, NJ: Erlbaum.
Hull, C. L. (1943). The principles of behavior. New York: Appleton-Century-Crofts. Kornell, N., & Bjork, R. A. (2007). The promise and perils of self-regulated study. Psychonomic Bulletin
& Review, 14, 219–224. Kornell, N., & Bjork, R. A. (2008). Learning concepts and categories: Is spacing the "enemy of induction"?
Psychological Science, 19, 585-592. Newton, L. (1990). Overconfidence in the Communication of Intent: Heard and Unheard Melodies.
Unpublished doctoral dissertation, Department of Psychology, Stanford University. Piaget, J. (1962). Play, Dreams and Imitation in Childhood. New York: Norton.
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References (continued)
Roediger, H.L. & Karpicke, J.D. (2006). Test-enhanced learning: Taking memory tests improves long-term retention. Psychological Science, 17, 249-255.
Rohrer, D., & Taylor, K. (2007). The shuffling of mathematics practice problems improves learning. Instructional Science, 35, 481-498.
Simon, D. A., & Bjork, R. A. (2001). Metacognition in motor learning. Journal of Experimental Psychology: Learning, Memory, and Cognition, 27, 907-912.
Smith, S. M, Glenberg, A. M., & Bjork, R. A. (1978). Environmental context and human memory. Memory & Cognition, 6, 342-353.
Smith, M. K., Wood, W. B., Adams, W. K., Wieman, C., Knight, J. K., Guild, N., & Su, T. T. (2009). Why peer discussion improves student performance on in-class concept questions. Science, 323, 122-124.
Ste-Marie, D. M., Clark, S. E., Findlay, L. C. & Latimer A. E. (2004). High levels of contextual interference enhance handwriting skill acquisition. Journal of Motor Behavior, 36, 115-126.
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McCabe’s (in press) web-based survey N = 255 undergraduates from a variety of institutions
50% Psychology majors / 50% Non-Psych; 78% female Age: M = 24.5; Education level: M = 3.72 yrs of college Self-reported GPA: M = 3.25
Six learning scenarios, followed by two rating scales: for ‘typical college students,’ and for ‘yourself’
Scenarios adapted from published experiments, including: Testing versus restudying (Roediger & Karpicke, 2006) Spacing versus massing (Kornell & Bjork, 2008)
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Finally, what do college students already know and not know about the activities that do and do not enhance learning?
McCabe (2011). Metacognitive awareness of learning strategies in undergraduates. Memory & Cognition.
Kornell and Bjork (2007). The promise and perils of self-regulated study. Psychonomic Bulletin and Review.
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“In two different classes, a 275-word prose passage about a specific topic is presented. In Class A, students first study the passage for 7 minutes, and then are asked to study the passage again for another 7 minutes (i.e., they RESTUDY). In Class B, students first study the passage for 7 minutes, and then are asked to write down from memory as much of the material from the passage as they can (i.e., they take a TEST). After 1 week, all students are asked to recall as much of the passage as they can remember.”
Predict the outcome of the test:
1. Class A (RESTUDY) would result in much higher test scores2. Class A (RESTUDY) would result in moderately higher test scores3. Class A (RESTUDY) would result in slightly higher test scores4. Test scores for Classes A and B would be about EQUAL 5. Class B (TEST) would result in slightly higher test scores6. Class B (TEST) would result in moderately higher test scores7. Class B (TEST) would result in much higher test scores
McCabe (2011) example scenario: The testing effect
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McCabe (2011): Results
“Typical College Students” “Yourself”
Learning ScenarioM
% Endorsement
M%
Endorsement
Testingvs.
Restudying3.38** 29.9% 3.37** 32.7%
Spacing vs.
Massing
2.00** 6.7% 1.90** 9.8%