dimarts, 12 d’abril de 2011

Una persona (sin conocimientos de Morfopsicología) puede distinguir por la cara un criminal // Criminals Look Different From Noncriminals // Test

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.


psychologytoday.com  // by Satoshi Kanazawa

(...) 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.

(...) 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.

Source: http://www.psychologytoday.com/blog/the-scientific-fundamentalist/201103/criminals-look-different-noncriminals

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

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