Sampling Techniques Explained

Sampling choice shapes what your findings can claim. UK examiners deduct marks for method-question mismatch or ungrounded generalisation.

Step-by-step

1. Step 1: Probability sampling
   Random, stratified, cluster and systematic. Use when generalisation is the goal.
2. Step 2: Non-probability sampling
   Convenience, purposive, snowball, quota. Use when reach or depth trump generalisation.
3. Step 3: Justify against your question
   State why your chosen technique fits, and acknowledge limits.

Common mistakes to avoid

• Convenience sampling with generalisation claims
• No sample size justification

FAQs