1. Target Populations and Samples Checklist for Obtaining a Sample That
Represents the Target Probability Sampling
Simple Random Sampling
Stratified Random Sampling
Systematic Sampling Cluster Sampling
Nonprobability Sampling
Convenience Sampling
Snowball Sampling
Quota Sampling
Focus Groups

2. Statistics and Samples
Sampling Errors
Estimating the Standard Error for Simple Random Samples
Sample Size: How Much Is Enough?
Checklist of Factors to Consider When
Calculating Sample Size Calculating Sample Size
Checklist of Questions to Ask When
Determining Sample Size
Sampling Units and the Unit of Analysis Acceptable Response Rate
Guidelines for Promoting Responses and
Minimizing Response Bias Calculating the Response Rate

Exercises
Answers
Suggested Readings
Glossary
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