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Sampling Methods in Research/Ushahidi
Rekodi ya ushahidi wa mbinu

Sampling Methods in Research

Sampling is the process of selecting a subset of individuals, observations, or units (the sample) from a larger population to study. Sampling methods are broadly classified into probability (random) and non-probability (non-random) approaches. Probability methods—random sampling, stratified sampling, cluster sampling, systematic sampling—enable statistical inference to the population and allow calculation of confidence intervals and margins of error. Non-probability methods—convenience, purposive, snowball, quota sampling—are practical for exploratory or qualitative research but do not support formal statistical generalization. Cochran's Sampling Techniques (1977) and Kish's Survey Sampling (1965) are foundational references; modern applications span surveys, experiments, qualitative studies, and clinical trials.

Sources recorded, not reviewed

Rekodi ya chanzo

Nukuu zimehamishwa kwa uhalisi kutoka kwa rekodi ya chanzo cha mbinu. Hakuna uthibitisho wa kiwango cha dai unaodokezwa kutoka kwao.

Sampling Techniques and Sampling Frame Design
Rekodi ya mbinu ya kiajenda · process-pipeline / research-methodology
  • Cochran, W. G. (1977). Sampling Techniques (3rd ed.). John Wiley & Sons. · URL
  • Kish, L. (1965). Survey Sampling. John Wiley & Sons. · URL
  • Patton, M. Q. (2015). Qualitative Research & Evaluation Methods (4th ed.). SAGE Publications. · URL
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Same method familyData Collection Methodsmachine-suggested · Relational suggestion, not evidence.Same method familyResearch Design Typesmachine-suggested · Relational suggestion, not evidence.Same method familyResearch Question Formulationmachine-suggested · Relational suggestion, not evidence.

Hali ya ushahidi

Sources recorded, not reviewed

Bibliographic sources are present. Claim-level evidence review has not been performed.

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