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Just Not a Useful Debate: Learning Styles Theory [Updated]
Andrew Watson
Andrew Watson

At one of the first Learning and the Brain conferences I attended, a speaker briefly mentioned that learning styles theory doesn’t have much good evidence to support it.

learning styles

That comment turned into a heated debate. Several attendees asked vexed, unhappy questions. The speaker held her ground.

When I got in the elevator at the end of that session, I heard one attendee curtly dismiss the speaker’s objection: “well, it’s all just statistics.”

It’s All Just Statistics

Well, it IS all statistics.

In the worlds of neuroscience and psychology, researchers rely on statistical methods to ensure their recommendations aren’t simply hunches.

Anyone can stand behind a microphone and have an opinion. But: if you’re going to do scientific research, your numbers have to add up.

And, as researchers look at valid statistical models, they just don’t find good support for the idea that — for instance — some people are visual learners and others are auditory learners.

The numbers just don’t add up. Or, in this case: if you teach “visual learners” “visually,” they don’t learn any more than if you had taught them “auditorily” or “kinesthetically.”

Multiple Entry Points

Instead, the content itself often offers guidance on the best way to teach. If you’re teaching a French or Spanish or Japanese accent, that content is — by its nature — auditory.

If you’re teaching geography, that content is visual.

Free throws? Kinesthetic.

Most content, however, can be taught in multiple ways.

For example: I’m thinking of an actress. She’s Australian. She played Virginia Woolf in that movie. And, she was married to Tom Cruise.

If you’re shouting NICOLE KIDMAN, you’re right. Notice that I gave you three entry points to the neural network that encodes this memory: her country of origin, a role she played, and her marriage.

So: “teaching to learning styles” helps because you probably teach your content in different ways — auditorily, visually, and kinesthetically. Those three different approaches give distinct connections to the memory you want your students to form.

This approach to teaching helps not because of a student’s learning style, but because all your students now have multiple ways to access that memory.

In other words, the theory helps students learn — but not for the reason it claims to.

“Learning Styles”: Today’s News

Daniel Willingham — one of the early debunkers of learning styles myths — has recently posted his current thoughts on learning styles. The short version:

Nope. Learning Styles still don’t exist. Really.

Learners should “tune their thinking to the task.” That is: learn about geography visually — even if you think you’re not a “visual learner.”

More than many researchers, Willingham gets teachers and teaching. So: if you’re still a learning-styles believer, I encourage you to check out his article.

 

In related news: Greg Ashman argues that, no, rejecting learning styles theory isn’t sexist. After all, LOTS of thoughtful female researchers reject the theory.

And: the Learning Scientists have a great take on this debate. We shouldn’t focus simply on rejecting learning styles theory. Instead, we should replace it with a better theory. They have thoughts on how to do so

[Update, 6/25/18]

Finally, Scientific American has a recent article showing that most students don’t use the learning styles that they believe would benefit them. And, when they do, those strategies don’t help them learn.

3rd Graders Beware! The Perils of Mindfulness Research
Andrew Watson
Andrew Watson

In our frantic, stressed-out, technology-addled world, it just makes sense: we should all take some time to rest our brains.

And: what better way than mindfulness?

perils of mindfulness research

We’ve all heard so much about the benefits of focused breathing. The energy that derives from specific poses. The insights that come from curious attention to our bodies.

So: what’s not to love about mindfulness?

Yoga and Mindfulness in 3rd Grade

In 2016 and 2017, researchers worked with high-anxiety 3rd graders at a school in New Orleans.

20 of these students went through a combined yoga and mindfulness program. This program has good research behind it, and was led by an experienced professional. As the researchers describe it,

The session content included breathing exercises, guided relaxation, and several Vinyasa and Ashtanga poses appropriate for third graders.

And, the school devoted real time to this program. Students met before school 10 times, for forty minutes each session. 400 minutes shows real commitment!

Researchers also kept track of 33 other high-anxiety 3rd graders who had been randomly selected as the control group.

Both before and after the yoga/mindfulness program, the students answered a list of questions that measure physical, emotional, and social quality of life. (It’s euphoniously called the PedsQL.)

So: did those 400 minutes help?

The Benefits of Mindfulness

In part, it seems the program helped.

For example, the 3rd graders who participated in yoga and mindfulness saw an increase in their emotional PedsQL score of more than 18 points. Given that the scale ranges from 1 to 100, and that they started with an average score of 52, AND that the control group’s average fell by just under a point — that’s a dramatic improvement!

Researchers also found a statistically significant improvement in their psychosocial PedsQL score.

In a parallel track of this investigation, researchers offered a professional development session on mindfulness for the school’s teachers.

As a result, they found that more teachers used mindfulness and yoga with their students during the class day. Depending on how you count, teachers roughly doubled the number of sessions they used in their classrooms.

So far, so good.

The Perils of Mindfulness Research

Despite all these measurements, I remain unpersuaded by this study.

Three concerns jump out at me.

First: the study includes a control group…but the control group didn’t do anything different from their normal routine. (They were treated for anxiety in the school’s usual way.)

So: the benefits described above might have resulted from the yoga and mindfulness. But, it might just have well resulted from doing something different. Maybe these students would have scored higher on the PedsQL if they’d gone hiking. Or, made music. Or simply arrived at school 40 minutes early and done something relaxing.

We just don’t know.

Second: the students did score higher on the emotional and psychosocial PedsQL, but those are only 2 of the 6 measures on the test. Their scores on the other scales — school, social, physical, and overall — weren’t statistically significantly improved.

In fact, if you look at table 2 instead of table 3, it seems that only the emotional and not the psychosocial scores improved. (Table 3 shows the results of more sophisticated statistical modelling.)

Even in the best case, then, the yoga and meditation helped students on some measures. On 2/3 of the measures, however, it didn’t make a measurable difference.

Third: in this study, classroom teachers started doing additional yoga with their students as well.

So, perhaps the change we saw resulted from the special yoga and mindfulness intervention. Or, perhaps it resulted from the additional classroom yoga. Or, perhaps from the combination.

Again: we just don’t know.

The Perils of Mindfulness Research: The Big Picture

My point here is not to criticize this study. I am, in fact, quite glad that researchers are working with students in schools.

In fact, these researchers — quite helpfully — asked teachers about the biggest impediments for having a mindfulness program in the school.

Instead, I want to highlight how difficult it is to be confident about cause and effect.

In truth, I really want to be persuaded. I want to be able to tell teachers that we’ve got a sure-fire solution to real school problems.

But, my desire to be persuaded means I must be especially vigilant about the research I rely on.

In fact, as noted before on this blog, research in this field isn’t improving as fast as we’d like it to.

Ultimately, if we’re going to tell students to come to school early, if we’re going to ask them to spend 400 minutes doing something, if we’re going to create new programs and hire more staff, we need to be sure that this cause produces this effect.

As of today, I don’t think we’re sure enough.

Can You Resist the Seductive Allure of Neuroscience?
Andrew Watson
Andrew Watson

The seductive allure of neuroscience often blinds us.

seductive allure of neuroscience

In fact, the image on the right shows the part of the brain — the focal geniculative nucleus — that lights up when we’re taken in by false neuroscience information.

Ok, no it doesn’t.

I’ve just grabbed a random picture of a brain with some color highlights.

And: as far as I know, the “focal geniculative nucleus” doesn’t exist. I just made that up.

(By the way: brain regions don’t really “light up.” That’s a way of describing what happens in an fMRI image. You’re really looking at changes in blood flow, indicated by different colors. Brains aren’t Christmas trees or smokers; they don’t light up.)

And yet, for some reason, a picture of a brain with some bits highlighted in color just makes us go wild with credulity.

The Seductive Allure of Neuroscience: Today’s Research

We’ve known for a while that people believe general psychology research more readily when it includes a picture of a brain.

Is that also true for research in educational psychology? That is, does this problem include research in teaching?

Soo-hyun Im investigated this question with quite a straightforward method. He explained educational research findings to several hundred people.

Some of those findings included extraneous neuroscience information. (“This process takes place in the focal geniculative nucleus.”)

Some also included a meaningless graph.

And some also included an irrelevant brain image (like the one above).

Sure enough: people believed the claims with the irrelevant brain image more than they did the same claim without that image.

In fact, as discussed in this earlier post, even teachers with neuroscience training can be taken in by misleading science claims.

Teaching Implications

If you’re reading this blog, if you’re attending Learning and the Brain conferences, you are almost certainly really interested in brains.

You want to know more about synapses and neurotransmitters and the occipital cortex. You probably wish that the focal geniculative nucleus really did exist. (Sorry, it doesn’t.)

On the one hand, this fascination offers teachers real benefits. For a number of reasons, I think it helps (some) teachers to know more about the process of synapse formation, or to recognize parts of the brain that participate in error detection.

At the same time, this interest confers upon us special responsibilities.

If we’re going to rely on brain explanations to support our teaching methods, then we should get in the habit of asking tough-minded questions.

Why are you showing me this brain image? Is the claim credible without the image?

What does that highlighted brain region have to do with learning?

Who says so? Can you cite some articles?

If the person presenting the information can’t — or won’t — answer these questions, then put down the fMRI image and step away from the research.

The teaching method itself might be sound, but the brain claims behind it are simply relying on the seductive allure of neuroscience.

Like Odysseus, you might be tempted — but do not give in to these neuro-Sirens.

Training Working Memory: Bad News, and Surprising Great News
Andrew Watson
Andrew Watson

Regular readers of this blog know that I’m very skeptical about training working memory. Despite all the promises, most studies show that WM training just doesn’t do very much.

working memory training

Better said: working memory training helps people do better on other, similar working memory tests. But it doesn’t help students learn to read or calculate or analyze any better.

(Earlier posts on this topic here and here.)

But here’s a tantalizing possibility: what if we could find an even better shortcut to cognitive success?

Training Working Memory: News from Finland

Researchers at Abo Akademi University in Turku wondered why WM training works in psychology labs, but not in classrooms.

(One of the champions of WM training — Dr. Susanne Jaeggi — has spoken at Learning and the Brain conferences. If you’ve seen her, you know she’s an incredibly impressive researcher. You too might reasonably wonder why that research isn’t panning out.)

These Finnish researchers wondered if the WM training simply gave students the chance to figure out a particular WM strategy.

That is: they didn’t have more working memory. But, they were using the WM they already had more strategically.

This strategy applied to the specific working memory task (which is why their WM scores seemed to get better), but doesn’t apply to other cognitive work (like math and reading).

If that hypothesis is true, then we could simply tell our students that strategy. We would then see the same pattern of WM development that comes from the training — only much faster.

Specifically, we would expect to see improvement in similar WM tasks — where students could apply the same strategy — but not on unrelated tasks — where that strategy doesn’t help.

If their hypothesis is correct, then the results that take 6 WEEKS of training might be available in 30 MINUTES. Rather than have students figure out the strategy on their own (the slow, 6 week version), we can simply tell them the strategy and let them practice (the 30 minute version).

The Test, the Results

The Finnish researchers worked with three groups of adults.

Control group #1 did a WM test on Monday and a WM test on Friday. They got no practice; they got no training.

Control group #2 also did WM tests on Monday and Friday. In between, they got to practice a WM task for 30 minutes. This is a mini-version of the WM training model. (If they had gotten the full six weeks, they might have figured out the strategy on their own.)

The study group — lucky devils — were TOLD a strategy to use during their practice session. (More on this strategy below.)

What did the researchers find?

First: As they predicted, the group that was told the strategy made rapid progress, but the other two groups didn’t.

Control group #1 didn’t make progress because they didn’t even get to practice. Control group #2 did practice…but they didn’t have enough time to figure out the strategy.

Only the study group made progress because only they knew the strategy.

Second: As researchers predicted, the group that learned the strategy didn’t get better at WM tasks unrelated to the strategy they learned.

In other words: the group given a strategy behaved just like earlier groups who had discovered that strategy for themselves during 6 weeks of practice. They did better at related WM tasks, but not at unrelated tasks.

We don’t need 6 weeks to get those results. We can get them in 30 minutes.

What, exactly, is this magical strategy?

The precise strategy depends on the working memory exercise being tested.

In general, the answer is: visualize the data in patterns. If you’ve visualized the pattern correctly, you can more easily perform the assigned WM task.

You can check out page 10 of this PDF; you’ll see right away what the strategy is, and why it helps solve some WM problems. You’ll also see why it doesn’t particularly help with other WM tasks — like, for example, understanding similes or multiplying exponents.

Training Working Memory: Classroom Implications

This research suggests that we shouldn’t train students’ general WM capacity, because we can’t. Instead, we should find specific WM strategies that most resemble the cognitive activity we want our students to do.

Those strategies allow students to use the WM they have more effectively. With the same WM capacity, they can accomplish more WM work.

The key question is: what WM strategies are most like school tasks?

We don’t yet know the answer to that question. (I’ve reached out to the lead author to see if she has thoughts on the matter.)

I do have a suspicion, and here it is: perhaps the practice that we’re already doing is the best kind. That is: maybe the working memory exercise that’s most like subtraction is subtraction. The working memory exercise most like reading is reading.

If I’m right, then we don’t need to devise fancy new WM exercises. The great news just might be: the very best WM exercise already exists, and it’s called “school.”

The Mindset Controversy: Is It Time to Give Up?
Andrew Watson
Andrew Watson

Few theories have gotten more teacherly attention than Carol Dweck’s work on Mindset.

As you no doubt know, she has found that a “fixed mindset” (the belief that ability and intelligence can’t really change) demotivates people. On the other hand, a “growth mindset” (the belief that the right kind of hard work enhances ability) promotes intrinsic motivation.

mindset controversy(We’ve posted about Mindset several times, including here and here.)

Because it’s so well known, Dweck’s theory is a popular target. You’ll often read that this or that study disproves her argument. For years now, this mindset controversy has raged on.

The Mindset Controversy: This Week’s Big News

Scholars at Case Western Reserve University looked at over 300 Mindset studies, and found…not much. By looking at all the relevant research, rather than just the well-known or successful studies, they got a comprehensive view.

That view showed only very modest effects.

Here’s lead author Brooke Macnamara (by the way, the word “significant” here means “statistically significant” not “deeply meaningful”):

“We found a significant but weak relationship between growth mindsets and academic achievement, and a significant, but small effect of growth mindset interventions on academic achievement.” (source)

Predictably, this meta-analysis has produced lots of strong responses.

Nick Soderstrom–a researcher whose work I admire–mused on Twitter that Mindset is “the new learning styles.” That is: a theory which lots of people believe, but which doesn’t have empirical support.

[Editor’s note, added 3/23/18: Dr. Soderstrom has responded to this post, and his comment includes this important point: “After seeing that you referenced one of my tweets, I feel compelled to mention that none of my tweets comparing growth mindset to learning styles have been assertive in nature. That is, I have never said that mindset IS the new learning styles. Indeed, such an assertion would be unfair and irresponsible at this point. Rather, I’ve simply asked the question and expressed my concern that it might be heading in that direction. I just don’t want your readers to assume that I’ve made up my mind on the utility of mindset interventions because I certainly haven’t. More evidence, or the lack thereof, is needed for that to happen.” My thanks for this clarification. You can see his full comment below.]

 

If, in fact, Mindset interventions just don’t do very much, should we stop?

Mindset Controversy: Don’t Give Up The Ship

I myself am still on board with mindset, and for several reasons.

First: other people have looked at large populations and found impressive effects.

For instance, this report found that for some groups of students, a growth mindset basically added an extra month’s worth of learning to school. Mind you, these authors looked at data for 125,000+ students to reach this conclusion.

Other thoughtful scholars and wise skeptics, have written sympathetically about Mindset. Here, for example, is recent article by John Hattie — not one to accept a theory simply because it’s popular.

Second: we should ask not simply “do Mindset interventions work?” but “do they work compared to something else?”

Mindset seeks to influence students’ motivation, and motivation is notoriously hard to influence. So, I’m not surprised it doesn’t produce dramatic changes. To get my attention in the world of motivation, even a small boost will do.

Third: Dweck is a famously careful scholar. When others criticize her work, she doesn’t ignore them; she doesn’t rant; she doesn’t change the subject. Instead, she accepts fair critiques and updates her thinking.

For example: many of Dweck’s early studies focused on the importance of hard work. You have to work hard to learn most anything, and students need to accept that.

Teachers and scholars offered a reasonable rejoinder. Some students do work hard and yet don’t learn, because they’re doing the wrong kind of work. We need a more precise phrase.

Accepting this criticism, Dweck now speaks of the right kind of hard work. She listened, and refined her theory appropriately.

Next Steps

A: I’ll be curious to hear what Dweck has to say once she’s digested this new information.

B: we should keep our eyes out for new theories of motivation that provide genuine assistance to teachers and students.

C: we should, of course, not overhype Mindset interventions. Until we get a better theory, however, we can call on these strategies at the right moments to help deepen our students’s motivation.

Sleeplessness Harms Women’s Thinking More Than Men’s?
Andrew Watson
Andrew Watson

You can understand why this study lit up my twitter feed recently. It makes a remarkable claim: women — but not men — experience working memory declines after a sleepless night.

Why We Care

We have at least two powerful reasons to care about this study.

First, it makes strong claims about gender differences. According to lead author Rangtell (and 8 colleagues), women’s performance on a working memory task gets worse after a sleepless night.

On the other hand, men’s working memory performance remains just as good as when they had a cozy 8-hour sleep.

(I’ve written about gender differences before. You may recall that I’m often skeptical of specific claims, but do think that there are some important differences at the population level.)

So, this study plays an important role in the ongoing debate.

Second, Rangtell’s study focuses on working memory. And, working memory is really important in school.

What is working memory?

When a student works on a word problem in math, she first has to select the key information from the sentences. Then she holds that information in mind. Third, she reorganizes all that information into the correct formula. And finally she combines pieces of that formula appropriately: for example, she combines “7x+8x” into “15x.”

Whenever students select, hold, reorganize, and combine information, they’re using working memory.

And, our students do that all the time. They use working memory to conjugate a new Spanish verb. And, when they apply new terminology (“protagonist”) to a specific book (“Sethe is the protagonist of Beloved.”) And, when they balance chemical equations.

Basically, schools are shrines we build to honor successful working memory functioning.

If there truly is a gender difference in working memory function, that’s a really big deal.

Sleeplessness Harms Women More Than Men?

This study is, conceptually, very straigtforward.

Ask some people to do a working memory task after a full night’s sleep. Then, ask them to do the same task after they’ve been up all night. Is there a difference in their working memory performance?

sleeplessness harms women

Rangtell and her colleagues say: for men, “no”; for women, “yes.”

However, this study includes a very serious problem. The task that they use to measure working memory DOESN’T MEASURE WORKING MEMORY.

(You read that right.)

The researchers asked these people to listen to a list of numbers, and then type those numbers into the computer in the same order.

That’s simply not a test of working memory. After all, the participants didn’t have to reorganize or combine anything.

Instead, that’s a test of short-term memory.

Now, short-term memory is related to working memory. But, “related to” isn’t good enough.

Imagine, for instance, I claimed that sleeplessness makes people shorter. The way I determine your height is by measuring the length of your arm.

Of course: arm length and height are related. But, they’re not the same thing. Tall people can have short-ish arms. I can’t measure one thing and then make a claim about a related but different thing.

So too, Rangtell can’t measure short-term memory and then make claims about working memory. She didn’t measure working memory.

Does sleeplessness harm women’s working memory more than men’s? We just don’t know.

(By the way: I’ve reached out to the lead researcher to inquire about the working memory/short-term memory discrepancy. I’ll update this post if I hear back.)

You Are Not a Nile Grass Rat…
Andrew Watson
Andrew Watson

read research skeptically

I’ve seen the same headline three times in my newsfeed today: “Dim Light Might Make You Dumber.”

One summary includes this teaser:

“Spending too much time in dimly lit rooms and offices may actually change the brain’s structure and hurt one’s ability to remember and learn.”

That’s a fascinating — and potentially alarming — research finding. At a minimum, it seems to have important implications for classroom design.

Here’s a key detail to remember: this study was done on Nile grass rats.

No, really. Rats. (I assume rats that live in Nile grass.)

Teachers Should Read Research Skeptically

Rat research is essential for neuroscientists. A great deal of our neuro-knowledge comes from animal studies.

So, too, in psychology. Watching primate behavior (and even pigeon behavior) helps us understand human behavior.

But, here’s the key point to remember: your students are not rats. (Depending on the grade you teach, they might occasionally remind you of rats. But, they’re really not.)

Teachers should pay close attention to neuroscience and psychology research done on people. However, you should NEVER change your teaching practice based on research into non-human animals.

Once More, with Feeling…

I want to go back to the quotation I cited above:

“Spending too much time in dimly lit rooms and offices may actually change the brain’s structure and hurt one’s ability to remember and learn.”

In your experience, how much time do rats spend in their offices?

According to Wikipedia, the natural habitats of the African rat are “dry savanna, moist savanna, subtropical or tropical moist shrubland, arable land, pastureland, rural gardens, urban areas, irrigated land, and seasonally flooded agricultural land.”

There’s no indication that rats ever go to the office.

Clearly, someone has already extrapolated the conclusions of this research to assume it applies to people. Until it has, in fact, been tested on people, you should not make the same mistake.

Surprise! Less Oxytocin Might Improve Social Interaction
Andrew Watson
Andrew Watson

 Oxytocin downside

The hormone/neurotransmitter oxytocin has developed a great brand.

It gets credit for all sorts of good things. When new lovers meet, their giddy glow might result from oxytocin. When mothers hold their babies, oxytocin seems to widen their smiles.

Little wonder, then, that oxytocin has earned the nickname “the love hormone.”

(more…)

Don’t Be Fooled by the Learning Pyramid Myth
Andrew Watson
Andrew Watson

AdobeStock_121864954 [Converted]_Credit

You have no doubt seen the tidy pyramid: students remember 5% of what they hear in a lecture, 10% of what they read, 20% of what they see, and so forth.

In crafting such a pyramid, its creators promote more active kinds of learning. The bottom of the pyramid, for example, might be “teaching others”: a highly active kind of learning that seems to generate all sorts of learning.

The Learning Pyramid Myth

The problem with the pyramid is not merely that it’s inaccurate, but that it’s incoherent. The Effortful Educator does a nice job of pointing out its obvious flaws, and of backing up his critique with specific sources.

As an easy introduction to that critique: any research producing numbers that are all divisible by 5 does seem rather suspicious…

(I first heard this critique from Charles Fadel at a Learning and the Brain conference in San Francisco 3 or 4 years ago. It just so happens that he’ll be speaking at the upcoming LatB conference–although on a different subject.)

The important lesson here goes beyond “always check the sources.” After all, if you look to see if this pyramid has been published elsewhere, you’ll find all sorts of examples.

Instead, the point is “always check the specific claims.” In this case, for example, you don’t need to see if someone has published a similar pyramid before; you need to see how the author supports the specific claim that students remember only 5% of what they hear in a lecture.

In fact, you should be most interested in research that focuses on students like yours.

Let’s imagine you found a study showing that students in a college art history class remembered 80% of what they heard in a lecture. That’s very interesting to college art history teachers–especially those who teach in the same way this particular professor does.

But, if you teach 5th graders, it doesn’t really help you very much.

Graphical representation of data can be inspiring: that’s one reason to be certain that the information in the graphic is correct.

[Addendum: 1/27/18] I’ve recently gotten some additional data on the “Learning Pyramid” from Charles Fadel. Enjoy!

Fadel Multimodal Learning Through Media – What the research says

Default Image
Andrew Watson
Andrew Watson

I live in Boston. I’m a Tom Brady fan. But, good heavens, his Brain Training program looks like snake oil.

The website (and, no, I’m not providing a link) uses all the right buzzwords: “brain plasticity,” “personalize,” “money-back guarantee!”

Some of the claims have a surface plausibility. You can, in fact, train your ability to track objects in space. Video games can do that for you, too.

But the idea that all of this comes together to promote “brain speed” and “intelligence” seems laughable. (I don’t know what “brain speed” even means.)

The Recent History of “Brain Training”

Always remember: Lumosity was fined $2,000,000 for making false claims sounding like these. I suppose it’s possible that Brady’s Brain Team has cracked a code that no one else has. But, it seems mightily unlikely.

I’m so vexed that I’m tempted to make a joke about Deflate-gate. For a Patriots fan, that’s as bad as it gets.