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Why Sample? |
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Population Definition |
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Sampling Designs |
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Probability Sampling |
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Random Selection
Simple Random Sampling
Stratified Random Sampling
Cluster Sampling
Systematic Sampling
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Nonprobability Sampling |
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Convenience Sampling
Purposive Sampling
Quota Sampling
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Other Sampling Designs |
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Combined Probability and Nonprobability Sampling
Referral Sampling
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Factors Affecting Choice of Sampling Design |
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Stage of Research and Data Use
Available Resources
Method of Data Collection
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Factors Determining Sample Size |
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Population Heterogeneity
Desired Precision
Sampling Design
Available Resources
Number of Breakdowns Planned
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Final Notes on Sampling Errors and Generalizability |
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Summary |
