Cognitive Bias In 12 Angry Men

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Movie Summary:
The movie 12 Angry Men is a 1957 American courtroom drama; the synopsis of the film surrounds 12 jury men that must reach a verdict in a murder case. The 12 men presented in the movie play the crucial roles of the jury, as they are sent to begin deliberations in the first-degree murder trial of an inner city 18-year-old Latino teen accused of stabbing his father to death. The premises of the movie takes place in the jury chambers where the 12 all-white jury men must decide unanimously the fate of the accused murder; guilty or not guilty. The jurors are convinced that the boy is guilty and they take no time to hand down the guilty verdict, however upon deliberations one lone juror votes’ not guilty inciting reasonable doubt. The one lone jury then begins to cast elements of considerable doubt on the case and onto the other jurors, which causes
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These errors, collectively labeled cognitive biases, tend to impede the negotiator performance”. These aspects are demonstrated in the secret ballot scene, where Juror #8 convinced the group to institute a second round of voting, where he used the logrolling negotiating technique. If the entire group engaged in the proposed a secret ballot; from which juror #8 will refrain; and in doing so, Juror #8 will give up his “not guilty” vote if the results of the second vote is unanimous “guilt” he would vote “guilty” to arrive at the consensus to report back to the judge, but the voting casted a new "not guilty" vote. Here is where the cognitive biases comes to play – juror #5 who was raised in a slum was verbally assaulted by juror #3, of changing his vote out of compassion towards slum children. However the cognitive error was made as it was juror #9 who had altered his vote, agreeing with juror #8 that there should be some

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