Sound evidence begins with a well-designed sample. We develop statistically defensible sampling approaches suited to the research questions, target population, geographic coverage, and available resources.

Our services include:

  • Sample-size determination

  • Probability sampling

  • Stratified and multistage sampling

  • Cluster sampling

  • Panel and longitudinal sample design

  • Sampling-weight calculation

  • Replacement and non-response protocols

  • Power calculations

  • Sampling-frame development and verification

  • Survey-weighted estimation

Sampling and Survey Design

2026

Malawi

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Former Customer

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