Apparently I’m on a blogging break

I just noticed that I haven’t posted in over a month. Don’t fear, loyal readers (am I being presumptuous with that plural? hi Mom!). I haven’t abandoned the blog, apparently I’ve just been too busy or preoccupied to flesh out any coherent thoughts.

So instead, here are some things that, over the last month, I’ve thought about posting but haven’t summoned up the wherewithal to turn into anything long enough to be interesting:

  • Should psychology graduate students routinely learn R in addition to, or perhaps instead of, other statistics software? (I used to think SPSS or SAS was capable enough for the modal grad student and R was too much of a pain in the ass, but I’m starting to come around. Plus R is cheaper, which is generally good for graduate students.)
  • What should we do about gee-whiz science journalism covering social neuroscience that essentially reduces to, “Wow, can you believe that X happens in the brain?” (Still working on that one. Maybe it’s too deeply ingrained to do anything.)
  • Reasons why you should read my new commentary in Psychological Inquiry. (Though really, if it takes a blog post to explain why an article is worth reading, maybe the article isn’t worth reading. I suggest you read it and tell me.)
  • A call for proposals for what controversial, dangerous, or weird research I should conduct now that I just got tenure.
  • Is your university as sketchy as my university? (Okay, my university probably isn’t really all that sketchy. And based on the previous item, you know I’m not just saying that to cover my butt.)
  • My complicated reactions to the very thought-provoking Bullock et al. “mediation is hard” paper in JPSP.

Our spring term is almost over, so maybe I’ll get to one of these sometime soon.

New resource for interpersonal perception researchers

Via Dave Kenny, I just found out about a new set of resources for researchers interested in personality and social relationships — and especially for users of the Social Relations Model.

Persoc is a research network founded by a group of mostly German researchers, although they seem to be interested in bringing people together from all over. From their website:

In September 2007 a group of young researchers who repeatedly met at conferences realized that they were all fascinated by the complex interplay of personality and social relationships. While we studied the effects of personality on very different social processes (e.g., zero acquaintance judgments, group formation, friendship development, mate choice, relationship maintenance), we shared a strong focus on observing real-life phenomena and implementing advanced methods to analyze our data. Since the official start of Persoc in late 2008, several meetings and workshops have deepened both, our interconnectedness as well as our understanding and interest in personality and social relationships. Persoc is funded by the German Research Foundation (DFG).

Among other things, they have created an R package called TripleR for analyzing round-robin data using the SRM componential approach. TripleR is intended as an alternative to the venerable SOREMO software created by Kenny. The persoc website also includes a page discussing theoretical concepts in interpersonal perception, an overview of a number of useful research designs, and other information.

Rhymes with schmersonality

Kirstin Appelt of the Center for Research on Environmental Decisions at Columbia has put together a nifty online index of personality measures. It’s called the Decision Making Individual Differences Inventory, which abbreviates to DMIDI. The email announcement I just got helpfully points out that the name “rhymes with ‘p. diddy’.” That may be my second-favorite part.

My first favorite part is that it’s a cleanly-designed, well-put-together website that looks like it will have tons of useful information for researchers. And even though it has an emphasis on measures relevant to decision-making research, the site casts a pretty wide net, including a number of Big Five measures and measures of “cognitive ability.” The latter gets snoot-quotes because for some reason economists and JDM researchers don’t like the word “intelligence.” (For that matter, they have a pretty narrow view of the word “personality” too. The section for trait measures is simply labeled “personality,” which is somehow placed in contrast to measures of motivation, attitudes, cognitive style, and ability — all of which, of course, are part of what makes you the person that you are, i.e., your personality.)

But I digress. It’s still under construction, but it looks like it will be a great resource. The site is set up as a wiki, which raises the possibility that they’ll be able to harness the academic community’s energy in updating and expanding it. I can see why they might be cautious about going down that road (who wants to moderate an edit war between a bunch of cantankerous professors?), but even in its current form it’s really nice.

Personality, economics, and human development

Just back from the Association for Research in Personality 2009 conference in Evanston. Lots of interesting stuff.

One of the main themes underlying the conference was integration with economics. There were (nominally) 2 symposia on personality and economics, as well as a keynote from James Heckman.

I say “nominally” because one of the symposia was really just a bunch of psychologists using an economics panel study (the SOEP) to study personality and life satisfaction. Very interesting stuff — the size of the dataset allows them to use some very sophisticated quantitative models (though I had some quibbles with them not including systematic growth functions) — but it didn’t feel to me like it was very far outside of the mainstream personality psychology paradigm.

One of the highlights for me, though, was Heckman’s keynote address.

First, what it wasn’t: when I first heard that a big-shot economist was getting interested in personality, I assumed he wanted to use personality traits to predict economically relevant behaviors, like how people form preferences and deal with uncertainty. It sounded like a good idea, because many economists (and their psychologist cousins in decision-making) have traditionally been strong situationists and thus resistant to thinking that personality matters. And in fact, that’s what one of the talks in the actually-about-economics symposium was about (as well as some emerging work elsewhere in DM) — how personality predicts economic decisions. It’s good and important stuff, if maybe a little unsurprising as a general direction to go.

But Heckman is interested in personality in a different way. In particular, he is interested in personality development and change. His interest grows out of research showing that interventions designed to lift people (esp. young kids) out of poverty (like the Perry Preschool Study, a precursor to Head Start) are working — kids who receive early care and educational help are more likely to go on to graduate from high school, more likely to be employed full-time as adults, less likely to get involved in crime, etc. Where Heckman got involved is in understanding the mechanisms. His work has shown that these programs don’t just boost cognitive skills (that’s economist-speak for IQ) — in fact, gains in tested IQ fade a few years after the intervention. Instead, the interventions seem to be mediated by lasting changes what economists call “noncognitive skills,” which is a slightly hilarious (if you’re a psychologist) term for personality. Enduring changes in things like diligence, cooperation, positive social relationships, etc. are what seem to be driving the effects. In Big Five terms, agreeableness and conscientiousness.

Not only is it refreshing to see an economist getting interested in personality (and as a sidenote, with what I took as a very authentic interest in making it a true 2-way street), but it’s refreshing to see anybody view personality as something that is subject to change via environmental inputs. That’s a drum I’ve been banging for a while, and the field is starting to come back to that as an interest (not only or even substantially because of my drum-banging — people like Brent Roberts, Ravenna Helson, Rebecca Shiner, Dan Mroczek, Avshalom Caspi, etc. have been banging it way longer than I have). But the Q&A showed that there’ll be some resistance. One of the presenters from the life-satisfaction panel — in fact, the one who seemed somewhat resistant to including systematic growth in his models — tried to challenge Heckman on that point, suggesting (wrongly in my view) that traits are too stable to be meaningful targets for intervention.

The same questioner also raised what I thought was a more interesting point, which is, isn’t a bit creepy to be thinking about public-policy interventions designed to mold personality? Heckman’s answer was a good start though maybe a little unsatisfying. He basically said that he sees what he’s doing as empowering people to act on their preferences. (Hence the economists’ “skills” rather than “personality.”) If you’re more capable of being cooperative and diligent, you can still choose a life of poverty and crime if you want it, but you are now empowered with the wherewithal to obtain and keep a decent job if that’s what you would really prefer. This harkens back to Wallace’s (1966) abilities conception of personality, which maybe could stand for a dusting-off.

Your brain has something to do with your mind, we think

Personality decided at birth, say scientists:

Anatomical differences between the brains of 85 people have been measured and linked with the four main categories of personality types as defined by psychiatrists using a clinically recognised system of character evaluation.

“There is no point shouting at a child who is very shy and telling them off, because it does not come naturally to them to put themselves forward. But actually knowing there is a biological basis for this helps educators or parents to use the right approach to help a child to compensate.”

This is a complete non sequitur. If two people behave differently, it necessarily follows that there are biological differences that underpin the behaviors. Because we are all, you know, made of stuff. Biological stuff. Demonstrating structural differences between brains says absolutely nothing about whether personality is “determined at birth.”