Confirmation Bias Essay

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One psychological phenomenon I found throughout the documentary was the confirmation bias. Confirmation bias is an inclination to search out evidence that confirms our beliefs and to ignore evidence that contradicts our beliefs. This usually occurs when someone has a flawed interpretation of a suspect’s verbal and nonverbal behavior. “Scores of research studies demonstrate that once we form a strong belief about someone, we tend to both seek out information that confirms that belief, and to dismiss information that contradicts that belief. As research on wrongful convictions indicates, police sometimes misperceive innocent suspects as guilty because the suspect did not behave the “right way” when questioned.” (Costanzo 54) In chapter 3 (Lie This is an example of confirmation bias, because it seems the lawyer made decisions based on her own assumptions. Without examining all the evidence, there is no way to give someone a fair trial. Not following up made the investigation more difficult, I do not feel anyone involved knew they were falling victim to confirmation bias but based on what was stated in the serial podcast, the lawyer was more so concerned with money than finding justice for Adnan. If Asia’s statements would have made it in to court, I definitely feel the jury may have come to a different verdict. Confirmation bias was also found in Episode 3: Leakin Park when Koenig spoke with the detective on the case, Greg MacGillivary. He stated “beyond question, he did it.” Meaning Adnan did it. He didn’t hem or haw or hesitate. He remembered the case right away. “Beyond question he did it.” This shows confirmation bias concerning the detective, once they felt they found the murderer, they started to focus on facts that only corroborated Adnan being the murderer. I say this is confirmation bias because the detectives in the case where tipped off by someone anonymous and never really had any evidence other than Jay’s inconsistent Retrieval inhibition is the phenomenon of selectively retrieving only some aspects of a memory while inhibiting recall of other aspects. In Chapter 7 Eyewitness Identification and Testimony, for example a “recall of a crime scene may be altered depending on how the eyewitness is initially questioned. In one laboratory study, people looked at slides of a student dorm room that had been burglarized. Experimenters later used selective questioning when asking about details of the crime scene. Although there were many textbooks in the picture of the room, experimenters asked only about particular types of sweatshirts. When questioned at a later time about what they saw, people tended to have good recall of the sweatshirts but poor recall of other objects, such as textbooks. Retrieving memories of sweatshirts made it more difficult to recall aspects of the scene about which no questions were initially asked.” (Costanzo

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