4um: Criminals Look Different From Noncriminals Yes, once again, you CAN judge a book by its cover

Title: Criminals Look Different From Noncriminals Yes, once again, you CAN judge a book by its cover
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URL Source: http://www.psychologytoday.com/blog ... ls-look-different-noncriminals
Published: Mar 29, 2011
Author: .
Post Date: 2011-03-29 09:26:18 by PSUSA
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Views: 275
Comments: 16

As it turns out, humans possess the ability to tell who's a criminal and who's not simply by looking at them because criminals look different from noncriminals.

Another "stereotype" about physical appearance that is not empirically true is "you can't judge a book by its cover." In previous posts, I have explained that women can tell which men would make good fathers and which men would make bad fathers simply by looking at them. And people can tell who are altruistic and who are egoistic simply by looking at a 30-second video clip without sound.

So, contrary to popular belief, you can assess people's character and personality by simply looking at them. Nice people look nice, and nasty people look nasty, and it appears that humans have innate psychological mechanisms to tell them apart. Now, in a truly groundbreaking study, recently published in the Journal of Social, Evolutionary, and Cultural Psychology, Jeffrey M. Valla, Stephen J. Ceci, and Wendy M. Williams of Cornell University show that people can tell criminals and noncriminals apart simply by looking at their still photos. Criminals, it appears, look different from noncriminals.

In their experiments, Valla et al. show pictures of the faces of 32 young Caucasian men in their 20s, without scars, tattoos or excessive facial hair, all in neutral expressions. Sixteen of them are convicted criminals, and the other sixteen are not. Valla et al. simply ask their experimental participants to indicate how likely they think it is that each man is a certain type of criminal (murderer, rapist, thief, forgerer, assailant, arsonist, and drug dealer) on a 7-point Likert scale from 1 = extremely unlikely to 7 = extremely likely. Their results from two experiments consistently show that individuals can tell who is a criminal and who is not, by indicating that they believe the actual criminals have higher probability of being a criminal than actual noncriminals.

However, their results also show that individuals cannot tell what type of criminals they are. While Valla et al. are initially puzzled by this finding, it is actually consistent with what we know from criminology. As I explain in an earlier post, criminals do not specialize. Men who commit one type of crimes are more likely to commit other types of crimes. (Remember O. J. Simpson?) Even though, for their experiments, Valla et al. carefully select pictures of criminals who are convicted of only one type of crimes, in empirical reality, there are no men who are only murderers (and do not and will not commit other types of crimes) or men who are only thieves (and do not and will not commit other types of crimes). Given time, some men would commit other types of crimes. In empirical reality, there are men who commit (all types of) crimes, and there are men who do not. And Valla et al.'s experiments show that individuals can tell them apart because the two types of men look different.

There is one seemingly anomalous finding in their paper. In both experiments, women are unable to spot rapists. Women consistently rate convicted rapists to be less likely to be criminal than not only other types of criminals but noncriminals as well! While this may be initially puzzling, upon further reflection, it makes perfect sense, as Valla et al. explain in their paper. In order to be a successful rapist, the man has to be able to fool the woman and earn her trust initially. Men who "fit the bill" by looking like a rapist or otherwise criminal and dangerous would not be able to do that. They would not be able to get close enough to the women to rape them. This may be why women, but not men, are unable to spot rapists, even though women are equally good as men at spotting other types of criminals.

For your amusement, I include the visual material that Valla et al. use in one of their experiments. It contains pictures of 32 men, 16 of whom are convicted criminals (arsonists, assailants, drug dealers, and rapists), and 16 of whom are noncriminals (normal college students). Can you spot the difference? Can you tell which of them are criminals and which of them are not? If you are a woman, can you spot the convicted rapists among them?

If you want to know the answers, you will have to access Valla et al.'s article here. The answers are in the Appendix at the end of their paper.

“Religion is regarded by the common people as true, by the wise as false, and by the rulers as useful.” -Seneca

They will have more difficulty assessing individuals of other races, but will correctly assess the racial groups.

The investigators will call it racism, since the samples for each race will be 50/50 rather than representative.

They have given us into the hand of new unhappy lords. Lords without anger and honor, who dare not carry their swords. They fight by shuffling papers; they have bright dead alien eyes; They look at our labor and laughter as a tired man looks at flies. - G.K. Chesterton

When I visited Cambridge University in the UK for a week to visit a post-doc buddy, I was stopped and questioned by campus security four times. I must look like an Irish hoodlum, which in fairness I guess isn't too far off.

I took that test. I didn't do well. I went thru the pics and picked 17 instead of 16. Of those 17 I got 9 correct.

To keep from having to download a large pdf just to get the answers, I give the correct answers below, in invisible text. Just select it to view it.

.Stimuli Answer Key: Non-Criminal – 1, 2, 6, 7, 9, 12, 13, 14, 15, 17, 18, 19, 22, 25, 26, 30; Arson – 5, 10, 16, 20; Assault – 4, 24, 27, 28; Drug Dealing – 8, 11, 21, 29; Rape – 3, 23, 31, 32

“Religion is regarded by the common people as true, by the wise as false, and by the rulers as useful.” -Seneca

__________________________________________________________
"This man is Jesus,” shouted one man, spilling his Guinness as Barack Obama began his inaugural address. “When will he come to Kenya to save us?"

I must look like some evil sumbitch.
People are uncomfortable around me and women are not interested.
I guess if I was a rapist, women would be interested?

A better way to do the test would be pairwise comparisons asking which one of the pair is more likely to be a criminal. That's a relative, non-parametric measure with a uniform scale across test-takers.

Well, actually, there is some truth to that statement. They do fantasize about it.

The nature of women's rape fantasies: an analysis of prevalence, frequency, and contents.

Department of Psychology, University of North Texas, Denton, TX 76203, USA. jenny.bivona@gmail.com

“Religion is regarded by the common people as true, by the wise as false, and by the rulers as useful.” -Seneca

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The nature of women's rape fantasies: an analysis of prevalence, frequency, and contents.

Abstract