AO3 Statistical Infrequency

• It is an objective way of defining abnormal based on statistical data
• There is a real life application it is a useful part of clinical assessments which are used to identify patients with mental disorders
• The definition does not distinguish between desirable and undesirable behaviour. For example, some unusual characteristics can be considered desirable and some common characteristics are undesirable
• A high IQ is considered desirable but it may fall out of the average. Therefore, many gifted people can be classed as 'abnormal' using this definition
• 1 in 4 people develop depression in their lifetime, but this is undesirable.
• Labelling someone as 'low IQ' can be unhelpful especially if they're able to live a 'normal' life without distress to themselves or others. This label can cause more issues than the condition (self fulfilling prophecy)
• What is a self fulfilling prophecy?

  A prediction that causes itself to become true. This may be due to your own beliefs that influenced your behaviour and performance contributing to the expected outcome coming to pass.