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Refresher sheet · PDFSampling & Sample Size — Refresher
The one-page sampling reference you'll actually keep open — designs, what drives sample size, and the pitfalls.
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Why this matters
Sampling decisions get made in a hurry and haunt the whole study. This one-pager keeps the essentials at your fingertips.
Probability vs non-probability, the common designs, what actually drives sample size, rules of thumb, and the usual mistakes.
What it changes
What's inside
- Branded one-page PDF reference
- Designs, sample-size drivers, rules of thumb
- Disaggregation reminder
- Print it or keep it on your desktop
Sample
A preview, watermarked. The file you receive after payment is clean.
ImpactMojo
Sampling & Sample Size — Refresher
Probability vs non-probability
➤ when each generalises
What drives sample size
➤ effect, power, variance
Rules of thumb
➤ n≈384 for ±5% at 95%
Pitfalls
➤ frame ≠ population
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