Flashcards in Statistical Infrequency Deck (5)
- Statistical Infrequency defines abnormality as a behaviour that deviates from the 'average'.
- Occurs when an individual possesses a less common characteristic than most of the population and therefore the behaviour displayed is statistically rare.
- Example of this is being extremely intelligent with an IQ score over 130 which is only 2.5% of the population.
- On the lower side, 2.5% of the population have below average IQ of 70 and below.
- The data collected can also be presented as a Normal Distribution Curve.
Strength: Gives guidelines
- Offers the prospect of clear guidelines for identifying behaviours as normal and abnormal.
- The definition gives objectivity into the process of defining abnormality so that all psychologists can scientifically identify behaviour in the same way.
- This is a strength as it offers a more scientific way of measuring abnormality which reduces subjectivity and bias.
- So gives a more accurate way of dealing with abnormality.
Strength: Abnormal is not negative
- Under this definition, being classed as abnormal is not necessarily negative behaviour but can instead be positive and desirable.
- E.g having a high IQ is very advantageous.
- This is a strength as it shows that behaviour which is statistically infrequent does not mean that the person needs treatment.
- The decision of where to start the 'abnormal' classification is arbitrary as there seems to be a subjective cut off point between stat. infrequency and normality.
- E.g it can be questioned how an IQ of 70 is abnormal but IQ of 71 is normal.