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Statistical infrequency, Failure to function adequately, Deviation from…
Statistical infrequency
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Example: IQ - IQ is normally distributed and the average IQ is 100. Individuals scoring below 70 are statistically unusual or abnormal and are diagnosed with intellectual disability disorder
AO3 +ve: Real Life Application: all assessments of patients with mental disorders includes some comparison to statistical norms. Intellectual disablility disorder demonstrates how statistical infrequency can be used. Statistical infrequency is thus a useful part of clinincal assessment
AO3 -ve: Unusual characteristics can be positive: If very few people display a behaviour, that makes the behaviour statistically abnormal but doesn't mean the person requires treatment. IQ scores over 130 are just as unusual as those below 70 but not regarded as undesirable and requiring treatment. Means it can never be used alone to make a diagnosis
AO3 -ve: Not everyone benefits from a label: When someone is living a happy and fulfilled life, there is no benefit to them being labelled as abnormal. Someone with a low IQ who was not out of work and not distressed would not need a diagnosis of an intellectual disability. Being labelled as abnormal might have a negative effect on the way others see them and how they view themselves
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