Systematic

Question 1

Individuals are selected at regular intervals from the sampling frame.

Answer 1

Systematic sampling

Question 2

The intervals are chosen to ensure an adequate sample size.

Answer 2

Systematic sampling

Question 3

If you need a sample size n from a population of size x, you should select every x/nth individual for the sample.

Answer 3

Systematic sampling

Question 4

is often more convenient than simple random sampling, and it is easy to administer.

Answer 4

Systematic sampling

Question 5

However, it may also lead to bias, for example if there are underlying patterns in the order of the individuals in the sampling frame, such that the sampling technique coincides with the periodicity of the underlying pattern.

Answer 5

Systematic sampling

Question 6

For example, if you wanted a sample size of 100 from a population of 1000, select every 1000/100 = 10th member of the sampling frame.

Answer 6

Systematic sampling