
Sampling Plans
How many, chosen how, and what you can honestly claim afterwards.

"I collected 100 responses because that seemed reasonable" is the sentence that ends a viva badly. Sample size needs a justification — a power calculation, a saturation argument, or an honest statement of constraint. So does your technique: convenience sampling is acceptable when you say so and bound your claims accordingly. We write the plan so both are defensible.
What you get
- Population and frame defined precisely
- Technique chosen for your access, not the textbook ideal
- Sample size justified with a calculation, not a habit
- Non-response planned for in advance
- The limits on generalisation stated up front
Related reading


APA 7th Edition
The details that cost marks: capitals, italics, ampersands and DOIs.
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Correlation & Reliability
Association is not cause, and your write-up should say so.
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