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I am a professor of psychology at UC Berkeley and author of View Seth's Profile
By Seth Roberts | February 16th 2009 02:46 PM | Print | E-mail | Track Comments

Pagophagia is an eating disorder where you chew a lot of ice. A friend of mine had it. After she discovered she loved crunching ice cubes, she started going through several trays of ice cubes per day. A trip to Russia, where ice cubes were unavailable, was highly unpleasant.


By Seth Roberts | January 24th 2009 02:09 PM | Print | E-mail | Track Comments

In the latest Vanity Fair is a brilliant piece of journalism, Goodbye to All That: An Oral History of the Bush White House by Cullen Murphy and Todd Purdum. In a fun, easy-to-read format, it tells some basic truths I had never read before. Here are two examples:


Matthew Dowd, Bush’s pollster and chief strategist for the 2004 presidential campaign:

When Abu Ghraib happened, I was like, We’ve got to fire Rumsfeld. Like if we’re the “accountability president,” we haven’t really done this.

By Seth Roberts | January 15th 2009 12:59 AM | 2 comments | Print | E-mail | Track Comments

In my experience, scientists are much too dismissive; most of them have a hard time fully appreciating other people’s work.


By Seth Roberts | December 19th 2008 07:37 AM | 3 comments | Print | E-mail | Track Comments

We all know the term bogeyman — a fictional monster that empowers its inventor. According to Wikipedia,
“parents often say that if their child is naughty, the bogeyman will
get them, in an effort to make them behave.” I always think of the
Falkland Islands. In 1982, by acting as if the Argentine invasion
actually mattered, Margaret Thatcher got herself a big boost in
popularity. In the 1960s, by acting as if Berkeley student protests
were dangerous, Reagan got elected president. The day after 9/11, I
said my big fear was overreaction. I doubt the persons behind the
bombing understood how useful they were to those in power. Bush got a
boost in popularity that lasted years.


By Seth Roberts | December 17th 2008 03:29 AM | 1 comment | Print | E-mail | Track Comments

Ben Casnocha asks what I mean by appreciative thinking.

A good question, since I invented the phrase. To learn appreciative thinking is to learn to appreciate, to learn to see the value of things. More or less the opposite of critical thinking.

That I had to make up a phrase shows the problem. I have complained many times about an overemphasis on critical thinking at universities.   Sometimes I’d say, “Have you ever heard the term appreciative thinking?  No?   How many times have you heard the term critical thinking?”

When it comes to scientific papers, to teach appreciative thinking means to help students see such aspects of a paper as:




By Seth Roberts | June 26th 2008 08:57 AM | 7 comments | Print | E-mail | Track Comments
A friend wonders what I think about this editorial by Chris Anderson, the editor of Wired. Anderson says “faced with massive data, this approach to science — hypothesize, model, test — is becoming obsolete.”

Anderson confuses statistical models with scientific ones. As far as the content goes, I’m completely unconvinced. Anderson gives no examples of this approach to science being replaced by something else.

For me, the larger lesson of the editorial is how different science is from engineering. Wired is mainly about engineering. I’m pretty sure Anderson has some grasp of the subject. Yet this editorial, which reads like something a humanities professor would write, shows that his understanding doesn’t extend to science. It reminds me why I didn’t want to be a doctor (which is like being an engineer.)

By Seth Roberts | May 5th 2008 08:28 AM | 2 comments | Print | E-mail | Track Comments

Not long ago, Howard Wainer, a statistician I mentioned recently, learned that his blood sugar was too high. His doctor told him to lose weight or risk losing his sight. He quickly lost about 50 pounds, which put him below 200 pounds. He also started making frequent measurements of his blood sugar, on the order of 6 times per day, with the goal of keeping it low.

It was obvious to him that the conventional (meter-supplied) analysis of these measurements could be improved. The conventional analysis emphasized means. You could get the mean of your last n (20?) readings, for example. That told you how well you were doing, but didn’t help you do better.

Howard, who had written a book about graphical discovery, made a graph: blood sugar versus time. It showed that his measurements could be divided into three parts:


By Seth Roberts | May 3rd 2008 04:56 AM | 6 comments | Print | E-mail | Track Comments

In a science classroom at a middle school I saw a poster about “the scientific method.” There were seven steps; one was “analyze your data.” According to the poster, you use the data you’ve collected to say if your hypothesis was right or wrong. Nothing was said about using data to generate new hypotheses. Yet coming up with ideas worth testing is just as important as testing them.


By Seth Roberts | March 13th 2008 12:10 PM | 1 comment | Print | E-mail | Track Comments

Scientists are fond of placing great value on what they call skepticism: Not taking things on faith. Science versus religion, is the point. In practice this means wondering about the evidence behind this or that statement, rather than believing it because an authority figure said it. A better term for this attitude would be: Value data.


By Seth Roberts | March 12th 2008 01:52 PM | Print | E-mail | Track Comments

Odd Numbers, an excellent blog by Jubin Zelveh at Portfolio.com, recently listed a few findings from the American Time Use Survey, which is in danger of being ended. They included:


- First-born children receive 20 to 30 minutes more quality time each day from parents than second-born children.

- Married couples have very little influence over each other when it comes to how much time each spends on leisure, child care, and chores.


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