Graphing discussion threads

Graphic representation of the Wikipedia discussions about deleting articles. The image links to an interactive version of the graphic at http://notabilia.net .

Swings to the right are arguments for keeping the article, swings to the left are arguments to delete them. Moritz Stefaner and others’ website have created this wonderful graphic of Wikipedia’s discussion threads. They have lots more details and discussions on their website.

The scientific explanation of why adolescents know everything!

The central proposition in our argument is that incompetent individuals lack the metacognitive skills that enable them to tell how poorly they are performing, and as a result, they come to hold inflated views of their performance and ability…. the way to make incompetent individuals realize their own incompetence is to make them competent.
– Kruger and Dunning (1999): Unskilled and Unaware of It: How Difficulties in Recognizing One’s Own Incompetence Lead to Inflated Self-Assessments (pdf)

If you don’t know what you’re doing, then it’s quite likely that you don’t know that you don’t know. Kruger and Dunning (1999) did a set of interesting studies to show this to be the case. It explains why people with the least information and knowledge about a subject may feel the most confident to opine about it.

It kind of explains why adolescents know everything. I know that I knew everything when I was 12, and ever since then I’ve been knowing less and less.

Of course there are the less typical teenagers who don’t express the same unaware overconfidence. They can be extremely competent at a particular thing (let’s call it a domain), like writing to take a purely random example, yet are extremely unconfident of their ability.

Well Kruger and Dunning (1999) have an explanation for that too. Competent people tend to think everyone else is competent too, so they tend too underestimate their ability relative to everyone else.

Teachers can easily fall into a similar trap, because we will often, quite unintentionally and unconsciously, assume students know more than they do. This is one of the reasons peer-teaching works so well. Students are more likely to know where their peers are coming from, and what they know to begin with.

The NY Times’ Errol Morris has a great interview with one of this study’s authors.

I’ll end with the most wonderful concluding remarks, which really put this whole study in perspective:

In sum, we present this article as an exploration into why people tend to hold overly optimistic and miscalibrated views about themselves. We propose that those with limited knowledge in a domain suffer a dual burden: Not only do they reach mistaken conclusions and make regrettable errors, but their incompetence robs them of the ability to realize it. Although we feel we have done a competent job in making a strong case for this analysis, studying it empirically, and drawing out relevant implications, our thesis leaves us with one haunting worry that we cannot vanquish. That worry is that this article may contain faulty logic, method- ological errors, or poor communication. Let us assure our readers that to the extent this article is imperfect, it is not a sin we have committed knowingly.
Kruger and Dunning (1999)

Islands of peace in a revolution

From the Guardian’s live feed of the uprising in Egypt:

A protester approaches the police to organize a cease-fire for the evening prayer. (Screengrab from Al Jezeera via The Guardian)
Prayer as protest (via The Daily Dish)

And who are the police? Who’s side are they on?

An Egyptian anti-government activist kisses a riot police officer following clashes in Cairo. Photograph: Lefteris Pitarakis/AP (via The Guardian live updates)

It reminds me of this picture from the protests last November in London over university tuition increases:

Schoolgirls join hands to peacefully stop attacks on a police van during student protests in London. Photograph: Demotix/Peter Marshall (via The Guardian)

So some questions:

  • What would it take for you to go out and protest (have you done it before)?
  • What would you do under these circumstances?

Moral Development in the Brain

If someone takes something of yours from your locker, does it matter if they intended to steal, or if they grabbed it by mistake because they thought it was their locker? We see there is a moral difference here, because people’s intentions and beliefs matter. An inadvertent mistake is one thing, but intentionally stealing is another.

We can see the difference, but typically, children under six do not. They see both things as just as bad, because they do not consider intentions.

The temporoparetial junctions. Image by the Database Center for Life Science, via Wikimedia Commons.

A recent study (Young et al., 2010) found the part of the brain that seems to be responsible for the consideration of intentions in moral judgment. This part of the brain, the right temporoparietal junction, develops between the ages of six and eleven.

I find this work fascinating because it implies that adolescents may still be developing the ability for deeper moral judgment when they get to middle school. It would help explain why they will sometimes make the argument that if the outcome did no harm then any transgression does not matter; taking something from someone’s locker is not that important if they get caught at it and have to return it.

Just like adolescents have to exercise our abstract thinking skills in order to fully develop and hone them, students probably need to practice and think about what morality means.

I think I’m going to have to figure out a framework for talking about morality for next cycle’s Personal World.

Note: Another interesting article on the role of the temporoparietal junction in meta-cognition.

Extending Thinking with Calvin and Hobbes

My students have been asking to write “book” reports on movies or Dr. Seuss picture books instead of novels. I am not theoretically opposed. Our theme this cycle is literary essays, with a focus on extending our thinking about issues, which can be done to any type of media: books, movies, music or even art for example. A great example is of what can be done is Richard Beck’s series of essays on the theology of Calvin and Hobbes.

… given the fact that the two lead characters are named after John Calvin and Thomas Hobbes, Calvin and Hobbes presents a dim view of human nature. … a running theme in Calvin and Hobbes is why virtue is so hard and vice so fun.
–Beck (2008) in The Theology of Calvin and Hobbes, Part 1: Human Nature Chapter 1: “Virtue needs some cheaper thrills”.

Although he’s an experimental psychologist at Abilene Christian University, Beck’s essays are fairly easy to read, and are great in how they analyze the subject work, in this case the Calvin and Hobbes cartoons, while drawing comparisons to other theological texts, from the original Hobbes’ Leviathan to recent analyses by authors like Alan Jacobs.

I think, as a condition for using an alternative to the novel, I’ll require students to read one of Beck’s essays. In fact, maybe I’ll have the entire class read the first one, “Virtue needs some cheaper thrills”, as an example of a literary essay.

Shake the dust revisited

Today in working on extending our thinking about texts we revisited Anis Mojgani’s “Shake the Dust“. We started by reading and thinking about the text, then had a group discussion. I played the video at the end.

After we watched Mojgani, I asked the students to write down if, and how, his presentation changed what they thought about the issue they were most interested. Mojgani’s presentation is forceful, and it emphasizes different issues than you can gleam from a dry reading of the poem. Doing it this way, I think, allowed students to see that there are multiple ways of interpreting the same texts.

Still life

Image by Gilles Tran.

What makes art? Frank Wilson points out that:

art … never simply transcribes what is “out there,” but selects certain details and arranges them into a harmony that transfigures them.
— Frank Wilson (2010) in “Still life and the alchemy of art“.

We might see arrangements like the stuff sitting on the counter every day, but the image/photography/painting becomes art when the collection is view from a specific perspective that transforms them and highlights details.

Aside from its obvious beauty, what really intrigues me about this picture is where it was taken: In the living room of the Menchers’ apartment, just a few feet from where I was standing. I would never have guessed.

When Eric told me that, I turned and looked, and could see where the vase and the other objects had been placed. But the setting was altogether different from the picture. The living room is a perfectly nice and neat space, and I had just been sitting there, but when I looked at it again there was absolutely nothing about it that would have brought to mind that photo.

Such is the alchemy of art.
— Frank Wilson (2010) in “Still life and the alchemy of art“.

Note: The image at the top of this post is computer generated Gilles Tran, using the free, open-source, 3D rendering program POV-Ray. I’ve played around with POV-Ray and it can be a bit tricky, but you can do interesting things.

Ethos, Portos, and Logos

No, not the three musketeers. These are the three things you need to persuade people: credibility, emotion and logic (Aristotle in On Rhetoric). EV, in a comment on my post on Critical Reading, pointed out an article called Classical Rhetoric, on the wonderfully named website, The Art of Manliness.

I’m trying to work this information into a lesson on Rhetoric, which, because of how closely they relate to adolescent development, the emergence of abstract thinking, and how we establish our place in the world, I’m hoping to stick into the Personal World curriculum.

To start with, here are my notes on Ethos:

Credibility (Ethos)

Credibility, the quality of being believable, depends on two things: the trustworthiness of the person, and their demonstrated knowledge of the issue at hand.

Character

We believe good men more fully and more readily than others. … his character may almost be called the most effective means of persuasion he possesses. – Aristotle

Credibility and strength of character count, even in the simplest of things. The answer to the question, “Did you take the last cookie?” will only be believed if the questioner trusts the person being asked to answer honestly.

Adolescents, who tend to be idealistic and opportunistic, need to pay close attention to the idea that history and reputation matter. They sometimes tend to view each individual encounter as it’s own separate event, unaffected by all the previous encounters and similar events. It is essential to recognize that this is not the case.

Credibility is most important because, although the cookie is a small thing, if you say, “No,” while the answer should be, “Yes,” then when the big questions come up, no matter how logical your arguments, you have no basis on which to persuade. Trust and character are hard to build, but easy to destroy.