Lesson 3: Statistical infrequency

Question 1

Define statistical infrequency as a definition of abnormality (AO1)

Answer 1

A definition of abnormality that suggests that a behaviour is seen as ABNORMAL if it’s STATISTICALLY UNCOMMON in society

Question 2

What do psychologists do to classify behaviour as INFREQUENT/RARE

Answer 2

Analyse general statistical patterns within a POPULATION to identify rare/infrequent behaviour

Question 3

Give an example where psychologists may look at STATISTICALLY INFREQUENT behaviour

Answer 3

When analysing IQ scores

-Average IQ=100
-Anything significantly LOWER or HIGHER are statistically rare/infrequent

Question 4

How can data from IQ scores be DISPLAYED?
(AO1)

Answer 4

using a NORMAL DISTRIBUTION CURVE

Question 5

What does a LEFT skewed normal distribution curve tell us?

Answer 5

tells us MAJORITY of the population have HIGH scores

-tails sits to the left

1) mode
2)median
3) mean

Question 6

What does a RIGHT SKEWED distribution curve tell us?

Answer 6

most of the population have LOW scores

tail sits to the right

1)mean
2)median
3)mode