SPSS Complex Samples™ 13.0 - Docs.is.ed.ac.uk

SPSS Complex Samples™ 13.0 - Docs.is.ed.ac.uk SPSS Complex Samples™ 13.0 - Docs.is.ed.ac.uk

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14 Chapter 2 Sample size. The number of units drawn at a given stage. The root name for the saved variable is SampleSize_. Sample weight. The inverse of the inclusion probabilities. The root name for the saved variable is SampleWeight_. Some stagewise variables are generated automatically. These include: Inclusion probabilities. The proportion of units drawn at a given stage. The root name for the saved variableisInclusionProbability_. Cumulative weight. The cumulative sample weight over stages previous to and including the current one. The root name for the saved variable is SampleWeightCumulative_. Index. Identifies units selected multiple times within a given stage. The root name for the saved variable is Index_. Note: Saved variable root names include an integer suffix that reflects the stage number—for example, PopulationSize_1_ for the saved population size for stage 1.

15 Sampling from a Complex Design Sampling Wizard: Plan Summary Figure 2-7 Sampling Wizard, Plan Summary step This is the last step within each stage, providing a summary of the sample design specifications through the current stage. From here, you can either proceed to the next stage (creating it, if necessary) or set options for drawing the sample.

15<br />

Sampling from a <strong>Complex</strong> Design<br />

Sampling Wizard: Plan Summary<br />

Figure 2-7<br />

Sampling Wizard, Plan Summary step<br />

Th<strong>is</strong> <strong>is</strong> the last step within e<strong>ac</strong>h stage, providing a summary of the sample design<br />

specifications through the current stage. From here, you can either proce<strong>ed</strong> to the<br />

next stage (creating it, if necessary) or set options for drawing the sample.

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