Confirmation Bias

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OOne of the most significant concerns of diagnosing a patient is whether or not the diagnosis is valid or reliable. The validity of a diagnosis is whether a patient is given an accurate diagnosis. Reliability is whether patients with the same symptoms would constantly get the same diagnosis from various psychiatrists. However, there are many factors that affect the validity and reliability of diagnoses. These factors include confirmation bias and cultural bias. Confirmation bias is the tendency to interpret information in a way that fits your understanding and cultural bias is bias towards one’s culture or against another culture. In this essay, I will discuss the effect of confirmation bias on the validity of diagnosis using Rosenhan’s study …show more content…

Seven of them were diagnosed with schizophrenia and were admitted to the psychiatric hospital. As soon as they got admitted they all said that the voices were gone and that they felt fine. After 19 days, they were discharged with the label schizophrenia in remission. Rosenhan then conducted a second study to test the validity of psychiatric diagnoses. Rosenhan told the psychiatrist that pseudo-patients would claim false symptoms and try to gain entrance to psychiatry hospitals even though there weren’t any. This resulted in 41 patients begin labelled as pseudo-patients by at least 1 staff member. From the results, Rosenhan concluded that it was not possible to tell the difference between patients with real symptoms and those with the fake symptoms. This is because when the psychiatrists were informed about the “fake” symptoms experienced by the pseudo-patients, they interpreted these symptoms with the symptoms that correspond to schizophrenia and thus displaying confirmation bias. This study showed how some diagnoses have issues when it comes to validity. It also shined a light on …show more content…

The aim of Li Repac’s study was to investigate whether different cultures would be diagnosed differently when displaying the same mental illness. In her study, there were ten participants, five white and five Chinese, who have been diagnosed with various mental illnesses such as schizophrenia and neurotic. The participants were asked general questions in videotaped interviews. These interviews were randomly assigned to five white and five Chinese psychiatrists, who were first asked to establish the concept of normality in patients using a 112-item test. The result showed no significant differences between the two groups and instead showed that they had a similar understanding of normality. They were then asked to rate four videos, two showing white patients and two showing Chinese patients. The results showed that the Chinese psychiatrist saw the white patients as being more aggressive than the Chinese patients. Similarly, the white psychiatrist saw the Chinese patient as more depressed and less socially competent. This study illustrates that diagnoses can be influenced by the attitudes and prejudge of the psychiatrists which then affects the reliability of the diagnoses given. For example, a particular group might be expected to get depression and as such, they have a higher likelihood of getting diagnosed with

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