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A researcher undertook a study to show how social background influences academic achievement. He considered a population of 600 people whose composition was; 90 professionals,...

A researcher undertook a study to show how social background influences academic achievement. He considered a population of 600 people whose composition was; 90 professionals, 115 managers, 150 skilled workers, 120 unskilled workers and 125 businessmen.
REQUIRED
What would be the most suitable sampling method for the study and why? (3mks)

Answers

Evalyne
Stratified random sampling.
This is a sampling technique that involves dividing a given population into different sub-groups, also known as strata on the basis of the characteristics (professionals, managers, skilled workers, unskilled workers and businessmen) of each strata. A random sample is then selected from each stratum, which is in direct proportion to the stratum size compared to the general population.
Researchers prefer this method as it differs from simple random sampling because it accurately reflects the population being studied. i.e. it ensures that each strata within the population is properly represented.
nyakio_evalyne answered the question on July 28, 2018 at 07:50

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