This paper from the University of Wisconsin Cooperative Extension provides a guide using different types of sampling and outlines a range of strategies that can be used when drawing a sample.


  • The sample: who and what
  • Sampling for generalizability: probability sampling
  • Strategies
  • Simple random sample
  • Systematic sample
  • Stratified sample
  • Sample size
  • Sampling for other purposes: non probabilty sampling
  • Strategies
  • Quota sample
  • Purposeful sampling
  • Sample size
  • Summary
  • References
  • Appendix 1. Table of random numbers
  • Appendix 2. Recommended sample sizes for two different precision levels


Taylor-Powell E. (1998), Sampling, Program Development and Evaluation, Madison Wisconsin, Cooperative Extention, University of Wisconsin-Extension. Retrieved from

Originally sourced from MyMandE

No votes yet
Rate this Resource:
This resource is useful for:
A special thanks to this page's contributors
Evaluation Specialist, Better Evaluation.
Gold Coast, Australia.


There are currently no comments. Be the first to comment on this page!

Add new comment

Login Login and comment as BetterEvaluation member or simply fill out the fields below.