Statistical Infrequency

• What is meant by 'statistical infrequency' as a definition of abnormality?

  Statistical infrequency defines abnormal behaviour as behaviours that are statistically uncommon and therefore are considered abnormal.
• In statistical infrequency what percentage of the population do you have to score out of the be considered abnormal?

  You have to score without the 95% of the population, either the top 2.5% or the bottom 2.5% of the population.