Definitions of abnormality

• What are the four definitions of abnormality?

  Statistical infrequency, deviation from social norms, failure to function adequately, and deviation from ideal mental health
• What is the definition for statistical infrequency?

  abnormality is defined as behaviour or characteristics that are rare/uncommon/unusual

  occupies the extreme ends of a normal distribution curve,

  uses up-to-date statistics

  for example, low IQ defined as intellectual disability disorder; OCD as a rare disorder.
• What is the definition for failure to function adequately?

  abnormality is defined as the inability to cope with daily life

  behaviours such as not being able to hold down a job, maintain a relationship, personal hygiene, etc

  failure to follow interpersonal rules.