Page 36 - F2 - MA Integrated Workbook STUDENT 2018-19

Chapter 2

Multistage sampling is often applied if the population is particularly
large, for example in selecting a sample for a national opinion poll of
the type carried out prior to a general election. It involves a number
of steps dividing the population into smaller sub populations until a
suitable sample size is reached.

Cluster sampling is similar to the multistage sampling but the final
step is to sample all the items as a ‘cluster’.

With quota sampling the interviewer will be given a list comprising
the different types of people to be questioned and the number or
quota of each type

Test your understanding 3

The essence of systematic sampling is that:

A each element of the population has an equal chance of being chosen

B members of various strata are selected by the interviewers up to
predetermined limits

C every nth member of the population is selected

D every element of one definable sub-section of the population is selected.

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