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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11<br />
Sampling from a <strong>Complex</strong> Design<br />
Sampling Wizard: Sample Size<br />
Figure 2-4<br />
Sampling Wizard, Sample Size step<br />
Th<strong>is</strong> step allows you to specify the number or proportion of units to sample within<br />
the current stage. The sample size can be fix<strong>ed</strong> or it can vary <strong>ac</strong>ross strata. For the<br />
purpose of specifying sample size, clusters chosen in previous stages can be us<strong>ed</strong> to<br />
define strata.<br />
Units. You can specify an ex<strong>ac</strong>t sample size or a proportion of units to sample.<br />
• Value. A single value <strong>is</strong> appli<strong>ed</strong> to all strata. If Counts <strong>is</strong> select<strong>ed</strong> as the unit<br />
metric, you should enter a positive integer. If Proportions <strong>is</strong> select<strong>ed</strong>, you should<br />
enter a non-negative value. Unless sampling with repl<strong>ac</strong>ement, proportion values<br />
should also be no greater than 1.
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