Statistical Infrequency

• What is statistical infrequency?

  abnormality is defined as any behaviour which is statistically uncommon & therefore not seen often in society
• What is one strength of statistical infrequency?

  - usefulness: used in clinical practice as formal diagnosis

  - Beck depressed test

  - score of 30+ is interpreted as indicating severe depression
• What is one limitation?


  - infrequent characteristics can b positive asw as negative

  - every person w IQ below 70 there's one w IQ above 130

  - do not see high IQ. as abnormal

  - shows being unusual at one end of spectrum doesn't make u abnormal