PP- Statistical infrequency

Question 1

What is a definition of abnormality?

Answer 1

Statistical infrequency

Question 2

What does statistical infrequency definition mean?

Answer 2

Statistical infrequency is a definition of abnormality where behaviour is seen as abnormal if it is statistically uncommon or rare.

Question 3

What is the average IQ score?

Answer 3

100

Question 4

Which IQ scores would be considered as quite rare or infrequent?

Answer 4

Scores that are significantly higher than 100 (e.g 130) or significantly lower than 100 (e.g 70).

Question 5

What percentage of the population have an average IQ score?

Answer 5

95%

Question 6

What percentage of the population have an above average IQ score?

Answer 6

2.5%

Question 7

What percentage of the population have a below average IQ score?

Answer 7

2.5%

Question 8

How can you display the data gained from IQ scores?

Answer 8

We can display it in a Normal Distribution curve.

Question 9

What are the advantages of ‘Statistical infrequency’ as a definition of abnormality?

Answer 9

1) Having an IQ score over 130 is just as unusual or statistically infrequent as having an IQ score below 70.
- However, being very intelligent with an IQ score over 130 is not a negative behaviour, but is actually quite positive and desirable.
- Statistical infrequency is a good thing.

2) Judgements are based on objective, scientific and unbiased data that can help indicate abnormality and normality e.g the IQ scores.
- The results from these tests can indicate whether someone needs psychological help and assistance. E.g an IQ score below 70 could indicate mental disability.

Question 10

What are the disadvantages of ‘Statistical infrequency’ as a definition of abnormality?

Answer 10

1) A disadvantage of statistical infrequency is that it involves labelling some people as abnormal, and this is not beneficial.
- A person with a low IQ of 70 might be labelled in a negative manner by other members of society, and this could have a negative effect upon them and how they view themselves.
- It could affect self esteem and confidence, leading to further problems.

2) Statistical infrequency can be criticised because there seems to be a subjective cut off point between statistical infrequency (abnormality) and normality.
- E.g an IQ of 70 is abnormal and statistically infrequent, but an IQ score of 71 is normal. The cut off point can be questioned.