Systematic sampling

• How is systematic sampling carried out?

  Selecting from a target group, e.g., every 5th person from a list.
• What is a strength of systematic sampling?

  List order is usually randomised. This is a strength as it offers an unbiased chance of gaining a representative sample.
• What is a weakness of systematic sampling?

  List may not be randomly made. This is a weakness as it increases the chance of yielding an unrepresentative sample.