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phdguide

Sampling

Your sampling strategy determines how far your findings generalise. We help you select an appropriate strategy and justify your sample size.

What this involves

  • Probability vs non-probability strategies
  • Sample size justification
  • Sampling frame and recruitment
  • Addressing bias and non-response

Who it's for

Scholars planning who and how many to study.

Frequently asked

How big should my sample be?+

It depends on your design and analysis — try our Sample Size Calculator, then we refine it with you.

Is non-probability sampling acceptable?+

Often yes, when justified — we help you defend the choice and acknowledge its limits.

Ethical, compliant guidance: We provide academic support, mentoring, analysis, editing and structuring — not authorship. Your work stays compliant with university policies.

Not sure where to start?

Book a free 15-minute consult. We'll map your next three steps — no obligation.

Ethical, compliant guidance

We provide academic support, mentoring, analysis, editing and structuring — not authorship. Your work stays compliant with university policies.