Systematic sampling

• Here, you choose nth individual to be part of the sample. i.e 3^rd , 6^th, 9^th or 2^nd , 4^th, 6^th , 8^th , etc.
• Sample is selected at regular periods.
• Equal opportunity for every sample to be selected.
• Relies on arranging the target population into ordering scheme.
• Involves a random start and continues with K^th

Advantages:

• Easy to select.
• Suitable sampling frame can be identified easily.

Disadvantages:

• Sample may be biased.
• Difficult to assess precision to estimate from one survey.